Hi, I am a Javascript apprentice. Can you help me with my project?

- Sure! What do you need?

Oh, it’s very simple, I just want to make a static webpage that shows a clock with the real time.

- Wait, why static? Why not dynamic?

I don’t know, I guess it’ll be easier.

- Well, maybe, but that’s boring, and if that’s boring you are not going to put in time, and if you’re not going to put in time, it’s going to be harder; so it’s better to start with something harder in order to make it easier.

You know that doesn’t make sense right?

- When you learn Javascript you’ll get it.

Okay, so I want to parse this date first to make the clock be universal for all the regions.

- You’re not going to do that by yourself right? You know what they say, don’t repeat yourself!

But it’s just two lines.

- Don’t reinvent the wheel!

Literally, Javascript has a built in library for t...

- One component per file!

I’m lost.

- It happens, and you’ll get lost managing your files as well. You should use Webpack or Browserify for managing your modules.

Doesn’t Javascript include that already?

- Yes, but some people still have previous versions of ECMAScript, so it wouldn’t be compatible.

What’s ECMAScript?

- Javascript

Why is it called ECMAScript then?

- It’s called both ways. Anyways, after you install Webpack to manage your modules, you still need a module and dependency manager, such as bower, or node package manager or yarn.

What does that have to do with my page?

- So you can install AngularJS.

What’s AngularJS?

- A Javascript framework that allows you to do complex stuff easily, such as two way data binding!

Oh, that’s great, so if I modify one sentence on a part of the page, it will automatically refresh the other part of the page which is related to the first one and viceversa?

- Exactly! Except two way data binding is not recommended, since you don’t want child components to edit the parent components of your app.

Then why make two way data binding in the first place?

- It’s backed up by Google. You just don’t get it do you?

I have installed AngularJS now, but it seems I have to redefine something called a... directive?

- AngularJS is old now, you should start using Angular, aka Angular 2.

But it’s the same name... wtf! Only 3 minutes have passed since we started talking, how are they in Angular 2 already?

- You mean 3.

2.

- 3.

4?

- 5.

6?

- Exactly.

Okay, I now know Angular 6.0, and use a component based architecture using only a one way data binding, I have read and started using the Design Patterns already described to solve my problem without reinventing the wheel using libraries such as lodash and D3 for a world map visualization of my clock as well as moment to parse the dates correctly. I also used ECMAScript 6 with Babel to secure backwards compatibility.

- That’s good.

Really?

- Yes, except you didn’t concatenate your html into templates that can be under a super Javascript file which can, then, be concatenated along all your Javascript files and finally be minimized in order to reduce latency. And automate all that process using Gulp while testing every single unit of your code using Jasmine or protractor or just the Angular built in unit tester.

I did.

- But did you use TypeScript?

So, our clients missed their internal deadline this weekend so we as vendor were also forced to work for the weekend and implement new features in a very short period. I implemented new features and my project manager stayed to support the testing and sent me home as I already had tickets bought for the movie.

As someone who hasn't done any developing in a long long time he even tried to implement some changes and complex JavaScript dom manipulation that they asked during testing so that I could be with my gf.

Few hours later he called me and with a sad voice said he is simply too slow and needs my help after all . I came and we stayed until 00h and solved everything. He paid for the movie and taxi.
The thing that impressed me was that he was willing to took over my job so that I wouldn't break my deal.

Best project manager ever!

P.S. Yes my gf went alone at the movie and yes we are still together xD

We're using a ticket system at work that a local company wrote specifically for IT-support companies. It's missing so many (to us) essential features that they flat out ignored the feature requests for. I started dissecting their front-end code to find ways to get the site to do what we want and find a lot of ugly code.
Stuff like if(!confirm("blablabla") == false) and whole JavaScript libraries just to perform one task in one page that are loaded on every page you visit, complaining in the js console that they are loaded in the wrong order. It also uses a websocket on a completely arbitrary port making it impossible to work with it if you are on a restricted wifi. They flat out lie about their customers not wanting an offline app even though their communications platform on which they got asked this question once again got swarmed with big customers disagreeing as the mobile perofrmance and design of the mobile webpage is just atrocious.

So i dig farther and farthee adding all the features we want into a userscript with a beat little 'custom namespace' i make pretty good progress until i find a site that does asynchronous loading of its subpages all of a sudden. They never do that anywhere else. Injecting code into the overcomolicated jQuery mess that they call code is impossible to me, so i track changes via a mutationObserver (awesome stuff for userscripts, never heard of it before) and get that running too.

The userscript got such a volume of functions in such a short time that my boss even used it to demonstrate to them what we want and asked them why they couldn't do it in a reasonable timeframe.

All in all I'm pretty proud if the script, but i hate that software companies that write such a mess of code in different coding styles all over the place even get a foot into the door.

And that's just the code part: They very veeeery often just break stuff in updates that then require multiple hotfixes throughout the day after we complain about it. These errors even go so far to break functionality completely or just throw 500s in our face. It really gives you the impression that they are not testing that thing at all.

And the worst: They actively encourage their trainees to write as much code as possible to get paid more than their contract says, so of course they just break stuff all the time to write as much as possible.
Where did i get that information you ask? They state it on ther fucking career page!

We also have reverse proxy in front of that page that manages the HTTPS encryption and Let's Encrypt renewal. Guess what: They internally check if the certificate on the machine is valid and the system refuses to work if it isn't. How do you upload a certificate to the system you asked? You don't! You have to mail it to them for them to SSH into the system and install it manually. When will that be possible you ask? SOON™.
At least after a while i got them to just disable the 'feature'.

While we are at 'features' (sorry for the bad structure): They have this genius 'smart redirect' feature that is supposed to throw you right back where you were once you're done editing something. Brilliant idea, how do they do it? Using a callback libk like everyone else? Noooo. A serverside database entry that only gets correctly updated half of the time. So while multitasking in multiple tabs because the performance of that thing almost forces you to makes it a whole lot worse you are not protected from it if you don't. Example: you did work on ticket A and save that. You get redirected to ticket B you worked on this morning even though its fucking 5 o' clock in the evening. So of course you get confused over wherever you selected the right ticket to begin with. So you have to check that almost everytime.

Alright, rant over.
Let's see if i beed to make another one after their big 'all feature requests on hold, UI redesign, everything will be fixed and much better'-update.

I'm trying to sign up for insurance benefits at work.

Step 1: Trying to find the website link -- it's non-existent. I don't know where I found it, but I saved it in keepassxc so I wouldn't have to search again. Time wasted: 30 minutes.

Step 2: Trying to log in. Ostensibly, this uses my work account. It does not. Time wasted: 10 minutes.

Step 3: Creating an account. Username and Password requirements are stupid, and the page doesn't show all of them. The username must be /[A-Za-z0-9]{8,60}/. The maximum password length is VARCHAR(20), and must include upper/lower case, number, special symbol, etc. and cannot include "password", repeated charcters, your username, etc. There is also a (required!) hint with /[A-Za-z0-9 ]{8,60}/ validation. Want to type a sentence? better not use any punctuation!

I find it hilarious that both my username and password hint can be three times longer than my actual password -- and can contain the password. Such brilliant security.

My typical username is less than 8 characters. All of my typical password formats are >25 characters. Trying to figure out memorable credentials and figuring out the hidden complexity/validation requirements for all of these and the hint... Time wasted: 30 minutes.

Step 4: Post-login. The website, post-login, does not work in firefox. I assumed it was one of my many ad/tracker/header/etc. blockers, and systematically disabled every one of them. After enabling ad and tracker networks, more and more of the site loaded, but it always failed. After disabling bloody everything, the site still refused to work. Why? It was fetching deeply-nested markup, plus styling and javascript, encoded in xml, via api. And that xml wasn't valid xml (missing root element). The failure wasn't due to blocking a vitally-important ad or tracker (as apparently they're all vital and the site chain-loads them off one another before loading content), it's due to shoddy development and lack of testing. Matches the rest of the site perfectly. Anyway, I eventually managed to get the site to load in Safari, of all browsers, on a different computer. Time wasted: 40 minutes.

Step 5: Contact info. After getting the site to work, I clicked the [Enroll] button. "Please allow about 10 minutes to enroll," it says. I'm up to an hour and 50 minutes by now. The first thing it asks for is contact info, such as email, phone, address, etc. It gives me a warning next to phone, saying I'm not set up for notifications yet. I think that's great. I select "change" next to the email, and try to give it my work email. There are two "preferred" radio buttons, one next to "Work email," one next to "Personal email" -- but there is only one textbox. Fine, I select the "Work" preferred button, sign up for a faux-personal tutanota email for work, and type it in. The site complains that I selected "Work" but only entered a personal email. Seriously serious. Out of curiosity, I select the "change" next to the phone number, and see that it gives me four options (home, work, cell, personal?), but only one set of inputs -- next to personal. Yep. That's amazing. Time spent: 10 minutes.

Step 6: Ranting. I started going through the benefits, realized it would take an hour+ to add dependents, research the various options, pick which benefits I want, etc. I'm already up to two hours by now, so instead I decided to stop and rant about how ridiculous this entire thing is. While typing this up, the site (unsurprisingly) automatically logged me out. Fine, I'll just log in again... and get an error saying my credentials are invalid. Okay... I very carefully type them in again. error: invalid credentials. sajfkasdjf.

Step 7 is going to be: Try to figure out how to log in again. Ugh.

"Please allow about 10 minutes" it said. Where's that facepalm emoji?

But like, seriously. How does someone even build a website THIS bad?

I am the LAW bro:)

I am backend + a bit devops
8 months I worked with front-end person in react.

8 months he was telling me.. git usage is not needed for front. There is no need for that, it is not like back.
Recently he made refactorization in a week time, this idiot did not do even single commit in the process.

4 months he was telling me, testing is not needed in front. Even if the work is complete, there is no point to cover with testing.

Today I heard from him, adaptive web design is impossible to do in css only, it needs having javascript to control right height and width size for elements.

At last. I got freed from him. He got fired.

My friend and boss，told me he would teach me code 2 years in a half ago.

I didnt know what css or html was and i used to call java javascript.

I can know create my own module with webpack， have my automated doc， use react， redux， he taught me linux， git，unit testing， databases，docker， and so on...

Im not an expert in any of it butbi know what they are for and can play with them more or less comfortably.

The best advice he ever gave me was:

“coding is not about coding. We are like the greath painters of history. They were great at painting but even more at creating. If you have no creativity， you can paint as well as you want， its worthless.”

Let the student use their own laptops. Even buy them one instead of having computers on site that no one uses for coding but only for some multiple choice tests and to browse Facebook.

Teach them 10 finger typing. (Don't be too strict and allow for personal preferences.)

Teach them text navigation and editing shortcuts. They should be able to scroll per page, jump to the beginning or end of the line or jump word by word. (I am not talking vi bindings or emacs magic.) And no, key repeat is an antifeature.

Teach them VCS before their first group assignment. Let's be honest, VCS means git nowadays. Yet teach them git != GitHub.

Teach git through the command line. They are allowed to use a gui once they aren't afraid to resolve a merge conflict or to rebase their feature branch against master. Just committing and pushing is not enough.

Teach them test-driven development ASAP. You can even give them assignments with a codebase of failing tests and their job is to make them pass in the beginning. Later require them to write tests themselves.

Don't teach the language, teach concepts. (No, if else and for loops aren't concepts you god-damn amateur! That's just syntax!)

When teaching object oriented programming, I'd smack you if do inane examples with vehicles, cars, bikes and a Mercedes Benz. Or animal, cat and dog for that matter. (I came from a self-taught imperative background. Those examples obfuscate more than they help.) Also, inheritance is overrated in oop teachings.

Functional programming concepts should be taught earlier as its concepts of avoiding side effects and pure functions can benefit even oop code bases. (Also great way to introduce testing, as pure functions take certain inputs and produce one output.)

Focus on one language in the beginning, it need not be Java, but don't confuse students with Java, Python and Ruby in their first year. (Bonus point if the language supports both oop and functional programming.)

And for the love of gawd: let them have a strictly typed language. Why would you teach with JavaScript!?

Use industry standards. Notepad, atom and eclipse might be open source and free; yet JetBrains community editions still best them.

For grades, don't your dare demand for them to write code on paper. (Pseudocode is fine.)

Don't let your students play compiler in their heads. It's not their job to know exactly what exception will be thrown by your contrived example. That's the compilers job to complain about. Rather teach them how to find solutions to these errors.

Teach them advanced google searches.

Teach them how to write a issue for a library on GitHub and similar sites.

Teach them how to ask a good stackoverflow question :>

Our web department was deploying a fairly large sales campaign (equivalent to a ‘Black Friday’ for us), and the day before, at 4:00PM, one of the devs emails us and asks “Hey, just a heads up, the main sales page takes almost 30 seconds to load. Any chance you could find out why? Thanks!”
We click the URL they sent, and sure enough, 30 seconds on the dot.
Our department manager almost fell out of his chair (a few ‘F’ bombs were thrown).
DBAs sit next door, so he shouts…
Mgr: ”Hey, did you know the new sales page is taking 30 seconds to open!?”
DBA: “Yea, but it’s not the database. Are you just now hearing about this? They have had performance problems for over week now. Our traces show it’s something on their end.”
Mgr: “-bleep- no!”
Mgr tries to get a hold of anyone …no one is answering the phone..so he leaves to find someone…anyone with authority.
4:15 he comes back..
Mgr: “-beep- All the web managers were in a meeting. I had to interrupt and ask if they knew about the performance problem.”
Me: “Oh crap. I assume they didn’t know or they wouldn’t be in a meeting.”
Mgr: “-bleep- no! No one knew. Apparently the only ones who knew were the 3 developers and the DBA!”
Me: “Uh…what exactly do they want us to do?”
Mgr: “The –bleep- if I know!”
Me: “Are there any load tests we could use for the staging servers? Maybe it’s only the developer servers.”
DBA: “No, just those 3 developers testing. They could reproduce the slowness on staging, so no need for the load tests.”
Mgr: “Oh my –bleep-ing God!”
4:30 ..one of the vice presidents comes into our area…
VP: “So, do we know what the problem is? John tells me you guys are fixing the problem.”
Mgr: “No, we just heard about the problem half hour ago. DBAs said the database side is fine and the traces look like the bottleneck is on web side of things.”
VP: “Hmm, no, John said the problem is the caching. Aren’t you responsible for that?”
Mgr: “Uh…um…yea, but I don’t think anyone knows what the problem is yet.”
VP: “Well, get the caching problem fixed as soon as possible. Our sales numbers this year hinge on the deployment tomorrow.”
- VP leaves -
Me: “I looked at the cache, it’s fine. Their traffic is barely a blip. How much do you want to bet they have a bug or a mistyped url in their javascript? A consistent 30 second load time is suspiciously indicative of a timeout somewhere.”
Mgr: “I was thinking the same thing. I’ll have networking run a trace.”

4:45 Networking run their trace, and sure enough, there was some relative path of ‘something’ pointing to a local resource not on development, it was waiting/timing out after 30 seconds. Fixed the path and page loaded instantaneously. Network admin walks over..
NetworkAdmin: “We had no idea they were having problems. If they told us last week, we could have identified the issue. Did anyone else think 30 second load time was a bit suspicious?”
4:50 VP walks in (“John” is the web team manager)..
VP: “John said the caching issue is fixed. Great job everyone.”
Mgr: “It wasn’t the caching, it was a mistyped resource or something in a javascript file.”
VP: “But the caching is fixed? Right? John said it was caching. Anyway, great job everyone. We’re going to have a great day tomorrow!”
VP leaves
NetworkAdmin: “Ouch…you feel that?”
Me: “Feel what?”
NetworkAdmin: “That bus John just threw us under.”
Mgr: “Yea, but I think John just saved 3 jobs. Remember that.”

I joined a "multi-national" company in middle-east where 90% of the developers are Indian. And since it's a "multi-national" company with 50+ developers I thought they already figured it out. Most of them have 5-10 years of experience. They should know at least how to use git properly, deployment should be done via CI/CD. database changes should be run via migration script. Agile methodology, Code Review - Pull Request. Unit testing. Design Patterns, Clean Code Principle. etc etc

I thought I'm gonna learn new things here. I have never been so wrong in all my life...

Technical Manager doesn't even know what Pull Request is. They started developing the software 4 years ago but used Yii v1 instead which was released almost a decade ago. They combined it with a VueJS where in some files contains around 4000 lines of code. Some PHP functions contain 500+ of code. No proper indentions as well. The web console is bloody red with javascript errors. In short, it's the worst code I've seen so far.

No wonder why they keep receiving complaints from their 30+ clients.

Python: I hate the way it uses True/False over true/false

Java: Static. Just fuck static. oh and System.out.println(), why the fuck did they make the basic print function so long to write.

C#: I despise the way the curly braces get automatically put under the function declaration rather than beside it since it's a language style thing.

C: the inability to declare vars in altho declaration of a forloop. Although I think C11 let's you do this.

Javascript: Fucking prototypes.

Coldfusion: it runs like an elephant. Slow and heavy.

Go: The way the compiler won't let you have unused variables/imports. Pain in the ass for testing.

So you need 7 yrs of experience just for jr developer position......
Credit:@code_mouse

Everytime when I meet new people -_-

Oh man. Mine are the REASON why people dislike PHP.

Biggest Concern: Intranet application for 3 staff members that allows them to set the admin data for an application that our userbase utilizes. Everything was fucking horrible, 300+ php files of spaghetti that did not escape user input, did not handle proper redirects, bad algo big O shit and then some. My pain point? I was testing some functionality when upon clicking 3 random check boxes you would get an error message that reads something like this "hi <SENSITIVE USERNAME DATA> you are attempting to use <SERVER IP ADDRESS> using <PASSWORD> but something went wrong! Call <OLD DEVELOPER's PHONE NUMBER> to provide him this <ERROR CODE>"

I panicked, closed that shit and rewrote it in an afternoon, that fucking retard had a tendency to use over 400 files of php for the simplest of fucking things.

Another one, that still baffles me and the other dev (an employee that has been there since the dawn of time) we have this massive application that we just can't rewrite due to time constraints. there is one file with (shit you not) a php include function that when you reach the file it is including it is just......a php closing tag. Removing it breaks down the application. This one is over 6000 files (I know) and we cannot understand what in the love of Lerdorf and baby Torvalds is happening.

From a previous job we had this massive in-house Javascript "framework" for ajax shit that for whatever reason unknown to me had a bunch of function and object names prefixed with "hotDog<rest of the function name>", this was used by two applications. One still in classic ASP and the other in php version 4.something

Legacy apps written in Apache Velocity, which in itself is not that bad, but I, even as a PHP developer, do not EVER mix views with logic. I like my shit separated AF thank you very much.

A large mobile application that interfaced with fucking everything via webviews. Shit was absolutley fucking disgusting, and I felt we were cheating our users.

A rails app with 1000 controller methods.

An express app with 1000 router methods with callbacks instead of async await even though async await was already a thing.

ultraFuckingLarge Delphi project with really no consideration for best practices. I, to this day enjoy Object Pascal, but the way in which people do delphi can scare me.

ASP.NET Application in wich there seemed to be a large portion of bolted in self made ioc framework from the lead dev, absolute shitfest, homie refused to use an actual ioc framework for it, they did pay the price after I left.

My own projects when I have to maintain them.

➡️You Are Not A Software Developer⬅️

When I became a developer, I thought that my job is to write software. When my customer had a problem, I was ready to write software that solves that problem. I was taught to write software.

But what customers need is not software. They need a solution to their problem. Your job is to find the most cost-effective solution, what software often is not.

According to the universal law of software development, more code leads to more bugs:

e = mc²

Or

errors = (more code)²

The number of bugs grows with the amount of code. You have to prioritize, reproduce and fix bugs.

The more code you write, the more your team and the team after it has to maintain. Even if you split the system into micro services, the complexity remains.

Writing well-tested, clean code takes a lot of time. When you’re writing code, other important work is idle. The work that prevents your company from becoming rich.

A for-profit company wants to make money and reduce expenses. Then the company hires you to solve problems that prevent it from becoming rich. Confused by your job title, you take their money and turn it into expensive software.

But business has nothing to do about software. Even software business is not about software. Business is about making money.

Your job is to understand how the company is making money, help make more money and reduce expenses. Once you know that, you will become the most valuable asset in the company.

Stop viewing yourself as a software developer. You are a money maker.

Think about how to save and make money for your customers.

Find the most annoying problem and fix it:

▶️Is adding a new feature too costly? Solve the problem manually.
▶️Is testing slow? Become a tester.
▶️Is hiring not going well? Speak at a meetup and advertise your company.
▶️Is your team not productive enough? Bring them coffee.

Your job title doesn’t matter. Ego doesn’t matter either.

Titles and roles are distracting us from what matters to our customers – money.💸

You are a money maker. Thinking as a money maker can help choose the next skill for development. For example:

Serverless: pay only for resources you consume, spend less time on capacity planning = 💰

Machine Learning: get rid of manual decision-making = 💰

TDD: shorter feedback cycle, fewer bugs = 💰

Soft Skills: inspire teammates, so they are more productive and happy = 💰

If you don’t know what to learn next — answer a simple question:

What skills can help my company make more money and reduce expenses?

Very unlikely it’s another web framework written in JavaScript.

Article by Eduards Sizovs
Sizovs.net

So this happened when i was developing the iOS app for the company I work in. I was given half boiled code written by the previous employee to work on. The app was laid around a webview. Now in iOS, there are 2 kind of webviews, the UIWebView that works on all iOS versions, and the WKWebview that works only on iOS 8+.
The app was coded using UIWebview, I brouht that up with my boss, and he asked me to continue using it, even after I repeatedly informed him that the javascript engine of this webview is subpar and we could be better off with WKWebview. Fast forward to 12 weeks later. The application is ready and is given to the boss for testing. He runs the app and plays around for a day. The next day, he comes up to me and says "The javascripts aren't working that well, can we switch to WKWebview instead?" In the inside of my mind, I have already murdered him three times, on his face, however I say, "We can look into it."
So, basically I rewrote the whole app with WKWebView, retargetting the app to iOS 8+.
The app is tested and launched. Everythings fine. AND NOW, he comes up to me and says, "Can we switch it back to UIWebView? We really need the app to be universally available on the app store and 6% of our customers, still use iOS7."
You know how I felt and what I had to do. Goes without saying, that the application is available on the AppStore, targetting iOS 7+.

TLDR, iOS Dev, given half boiled code with UIWebview, tells boss about WKWebview (iOS8+) and advantages. He asks me to continue UIWebView. App developed, 12 weeks. He comes up and points to problems and asks me to retarget with WKWebview. Developed and App launched.
He comes up and says, we need iOS7+, retarget the app to UIWebview. FML.

I fucking HATE testing JavaScript. It's such fucking bullshit. I've been struggling to test one simple functionality for multiple hours. It's probably one stupid thing I can't figure out, so I hope some sleep will grant me a fresh look tomorrow.

Also it's absolute bullshit the amount of libraries and dependencies you need to have to get some proper scalable tests going. Jasmine, Babel, ES2015, yarn/npm (because Jenkins is too fucking old to handle yarn). React, react test helpers, webpack. The list continues. FUCK OFF!

I am much too tired to go into details, probably because I left the office at 11:15pm, but I finally finished a feature. It doesn't even sound like a particularly large or complicated feature. It sounds like a simple, 1-2 day feature until you look at it closely.

It took me an entire fucking week. and all the while I was coaching a junior dev who had just picked up Rails and was building something very similar.

It's the model, controller, and UI for creating a parent object along with 0-n child objects, with default children suggestions, a fancy ui including the ability to dynamically add/remove children via buttons. and have the entire happy family save nicely and atomically on the backend. Plus a detailed-but-simple listing for non-technicals including some absolutely nontrivial css acrobatics.

After getting about 90% of everything built and working and beautiful, I learned that Rails does quite a bit of this for you, through `accepts_nested_params_for :collection`. But that requires very specific form input namespacing, and building that out correctly is flipping difficult. It's not like I could find good examples anywhere, either. I looked for hours. I finally found a rails tutorial vide linked from a comment on a SO answer from five years ago, and mashed its oversimplified and dated examples with the newer documentation, and worked around the issues that of course arose from that disasterous paring.

like.
I needed to store a template of the child object markup somewhere, yeah? The video had me trying to store all of the markup in a `data-fields=" "` attrib. wth? I tried storing it as a string and injecting it into javascript, but that didn't work either. parsing errors! yay! good job, you two.

So I ended up storing the markup (rendered from a rails partial) in an html comment of all things, and pulling the markup out of the comment and gsubbing its IDs on document load. This has the annoying effect of preventing me from using html comments in that partial (not that i really use them anyway, but.)

Just.
Every step of the way on building this was another mountain climb.
* singular vs plural naming and routing, and named routes. and dealing with issues arising from existing incorrect pluralization.
* reverse polymorphic relation (child -> x parent)
* The testing suite is incompatible with the new rails6. There is no fix. None. I checked. Nope. Not happening.
* Rails6 randomly and constantly crashes and/or caches random things (including arbitrary code changes) in development mode (and only development mode) when working with multiple databases.
* nested form builders
* styling a fucking checkbox
* Making that checkbox (rather, its label and container div) into a sexy animated slider
* passing data and locals to and between partials
* misleading documentation
* building the partials to be self-contained and reusable
* coercing form builders into namespacing nested html inputs the way Rails expects
* input namespacing redux, now with nested form builders too!
* Figuring out how to generate markup for an empty child when I'm no longer rendering the children myself
* Figuring out where the fuck to put the blank child template markup so it's accessible, has the right namespacing, and is not submitted with everything else
* Figuring out how the fuck to read an html comment with JS
* nested strong params
* nested strong params
* nested fucking strong params
* caching parsed children's data on parent when the whole thing is bloody atomic.
* Converting datetimes from/to milliseconds on save/load
* CSS and bootstrap collisions
* CSS and bootstrap stupidity
* Reinventing the entire multi-child / nested params / atomic creating/updating/deleting feature on my own before discovering Rails can do that for you.

Just.
I am so glad it's working.
I don't even feel relieved. I just feel exhausted.

But it's done.
finally.

and it's done well. It's all self-contained and reusable, it's easy to read, has separate styling and reusable partials, etc. It's a two line copy/paste drop-in for any other model that needs it. Two lines and it just works, and even tells you if you screwed up.

I'm incredibly proud of everything that went into this.
But mostly I'm just incredibly tired.

Time for some well-deserved sleep.

Testing for equality
😀😁

Who won 😉

My internship is coming to an end and I think my boss is testing my limits.

So, in the beginning of this week, he assigned me a non reproducible bug that has been causing trouble to the whole team for months.

Long story short, when we edit or create a planned order from the backend, once in fifteen, a product is added to the list and "steals" the quantity from another product.
Everyone in the company has experienced this bug several times but we never got to reproduce it consistently.

After spending the whole week analyzing the 9 lines of JS code handling this feature, reading tons of docs and several libraries source code. I finally found a fix by "bruteforce testing" with selenium and exporting screenshots, error logs and snapshots of the html source.

This has been intense but was worth the effort, first, I fix a really annoying bug and second, I learned a lot of things and improved my understanding of Javascript.

Today I started work on a new project that contains a lot of legacy. I asked the developers about unit testing javascript and was told that not only is there none in place, but it's not worth adding any in.

At first, I grimaced and thought fair enough. This is their codebase, it's their choice. I've now been thinking about this for a few hours and have instead decided that screw those guys, I'm adding in a testing framework, a module pattern that's compatible with the existing code, and unit testing the crap out of it. If they don't want it they can refactoring it out, but I can't bring myself to intentionally deliver code I know is crap.

I WILL FORCE CODE QUALITY ON THEM.

I shit you not. This this a job qualifications qualifications entry level on LinkedIn.

7+ years working as part of a development team and with the following technologies:
Node.js Typescript and Java-based, microservice-driven applications using Spring Boot or similar framework
RESTful API design / microservice architectures
MongoDB or any other NoSQL DB
Message queues e.g. RabbitMQ, Kafka etc.
Modern MV*(MVC, MVVM, etc..) frameworks e.g. React, Angular, Vue etc.
JavaScript and design patterns, CSS and HTML
Modern CSS and view libraries e.g. RxJS, Angular Material, Typescript, JS ES6 etc.
Unit and UI testing using third party tools e.g. Jest, Cucumber, Groovy & Spock, etc.
Bachelor's degree in computer science or related field

36.63% of the respondents said they’re not planning to use any new programming languages in the coming 12 months.

But, 18.15% of them said they’re planning to use Python, while 16.83% said they’re planning to use Go, followed by JavaScript with 16.17%.

What about the tools?

Honestly, this was the hardest part of the report since it required very thorough data cleaning, and it turns out developer teams use a wide variety of tools, especially when it comes to testing and project management.

Had a blast from the past the other day. Testing an issue with an AngularJS app in IE11 on a project managers Surface.

Nothing works. Just a blank screen. I open the JavaScript console to hundreds, maybe thousands of errors. They all seem eerily familiar, but I can't place them. It's like something from a past life.

Then I see one that brings the issue into sharp focus.

"{{variable_name}} is a reserved word"

No it isn't, I think. That hasn't been a reserved word in JavaScript since...

Me: "Is your browser in Compatibility Mode?"

PM: "Yeah, it's for one of our legacy programs"

Me: "You need to turn that off to test this app. It thinks you're using IE6, so it's having a 2 decade old shit-fit. I haven't seen those errors since I was a teenager making crap on Geocities"

I never thought an error message could make me feel so old 😩

Ok , so True is just !False

Apart from having a baby which is the hardest in the world，i think the hardest project is to learn to code.

I studied philosophy and anthropology but gamed a lot. Me and a good mate decided to work together and he told me hed teach me coding.

The guy is a genius but he is a reckless rebel genius who tells everybody to fuck off.

So，after 1 year in a half of intense coding where i had to learn linux， networks， and im not shitting you html and css as well and of course javascript.

He has now put me on， for the last 2 month， in charge of our front end backoffice. I have to design forms that do the right http requests，do the unit testing， play with redux-form， react-redux and he has thrown me into the basic java backend so i can begin working with entites and how i serve the data and link it to the database and even create tables.

Every time i fail hemakes me remake everything.

I actually came on devrant to study the dev community (i always gamed a lot but this is a whole different community). The dev community is pretty awesome and unique.

Anyhow， i remember when i saw him as me to complete an exercise and i didnt event know which words were the reserved language ones and those i could use myself. It was like fucking magic.

Small test at school testing our knowledge of javascript and the p5js library.

One of the aims was to make a small rectangle slowly move across.

I lost one mark because I didn't define a y variable for the rectangle, even though the y never changes.

*sigh*

These fast-evolving JavaScript libraries are really testing my passion.

Writing a Unit test to test the Unit test that's testing your application, because you can never be sure about anything.

Our project at work goes live in 3 weeks.

The code base has no automated tests, breaks very often, has never had any level of manual testing

will not be releasing with any form of enforced roles or permissions in our first release now due to no time to enforce, however there is a whole admin api where you can literally change anything in our database including roles.

We also have teams in various countries all working separately on the same solution using microservices with shared nuget packages and they aren't using them properly.

Our pull requests are so big - as much as, 75 file changes - in our fe app that I can't keep up with it and I honestly have no idea if it even works or not due to no automated tests and no time to manually test.

We have no testing team, or qa team of any sort.

Every request into the system has to hit a minimum of 3 different databases via 3 different microservices so 1 request = 4 requests with the load on the servers.

We don't use any file streams so everything is just shoved in the buffer on the server.

Most of the people working on the angular apps cba to learn angular, no one across 2 teams cba to learn git. We use git so they constantly face problems. The guy in charge has 0 experience in angular but makes me do things how he wants architecturally so half the patterns make no sense.

No one looks at the pull requests, they just click approve so they may as well push directly to master.

Unfinished work gets put in for pull request so we don't know if the app is in a release state since aall teams are working independently, but on the same code base.

I sat down and tested the app myself for an hour and found 25 fe only issues, and 5 breaking cross browser issues.

Most of our databases are not normalised. Most of our databases make no sense. 99% of our tables have no indexing since there is no expertise with free time to do it.

No one there understands css properly. Or javascript.

Our. Net core microservices all directly use ef in the controller actions so there is no shared code there.

Our customer facing fe app is not dry because no tests so it was decided it was better this way.

Management has no idea on code state, it seems team lead is lieing to them about things like having any level of tests.

Management hire devs that claim to be experts but then it turns out they have basically no knowledge of what they were hired to do, even don't know what json is or the framework or language they are hired for, but we just leave them to get on with it and again make prs too big to review.

Honestly I have no hope that this will go well now but I am morbidly curious to watch. I've never seen anything like the train wreck that we are about to get experience.

Things that seem "simple" but end up taking a long ass time to actually deploy into production:

1. Using a new payment processor:

"It's just a simple API, I'll be done in 2 hours"

LOL sure it is, but testing orders and setting up a sandbox or making sure you have credentials right, and then switching from test to life and retesting, and then... fuck

2. Making changes to admin stats.

"'I just have to add this column and remove that one... maybe like a couple of hours"

YOU WISH

3. Anything Javascript

"Hah, what, that's like a button, np"

125 minutes later...

console.log('before foo');
console.log(this.foo)
etc..

Jest? It's the perfect name for a testing library, because I certainly feel like a clown! 🤡

#clowndrivendevelopment

So recently I needed to make a little Tic-tac-toe game with Node.JS for an university project. I previously learned Java and C# so Javascript as a non-compiled, script based language was something new for me.

Now during the programming process I reached the point where I needed to implement a function to change the player who's playing.

I was testing the game and... It seemed like the player was changed twice so it immediately switched back to the previous player.

Using a lot of console.log's I finally stumbled upon the error... (since Javascript or at least Visual Studio Code, I honestly don't know, doesn't have any kind of debugger or something).

Why the fuck does js allow to make allocations in if conditions?

I accidentally wrote one '=' instead of three '==='.

No error, no warning... Nothing.

Since then js and me are not friends anymore.

!rant

After two years of learning front end librairies and some javascript my mate just threw me into our java backoffice to help him do the testing.

I read so much shit about java， i was a bit apprehensive... But man the more i learn the more i think code is beautiful.

Well i for the first time am starting in java today and its beautiful as well ;) like，i can`t remember having had so much awe for something in a long time.

I have been keeping this inside for long time and I need to rant it somewhere and hear your opinion.

So I'm working as a Team Lead Developer at a small company remotely based in Netherlands, I've been working there for about 8 years now and I am the only developer left, so the company basically consists of me and the owner of the company which is also the project manager.

As my role title says I am responsible for many things, I maintain multiple environments:
- Maintain Web Version of the App
- Maintain A Cordova app for Android, iOS and Windows
- Working with pure JavaScript (ES5..) and CSS
- Development and maintenance of Cordova Plugins for the project in Java/Swift
- Trying to keep things stable while trying very hard to transit ancient code to new standards
- Testing, Testing, Testing
- Keeping App Stable without a single Testing Unit (sadly yes..)
- Just pure JavaScript no framework apart from JQuery and Bootstrap for which I strongly insist to be removed and its being slowly done.

On the backend side I maintain:
- A Symfony project
- MySQL
- RabbitMQ
- AWS
- FCM
- Stripe/In-App Purchases
- Other things I can't disclose

I can't disclose the nature of the app but the app is quite rich in features and complex its limited to certain regions only but so far we have around 100K monthly users on all platforms, it involves too much work especially because I am the only developer there so when I am implementing some feature on one side I also have to think about the other side so I need to constantly switch between different languages and environments when working, not to mention I have to maintain a very old code and the Project Owner doesn't want to transit to some more modern technologies as that would be expensive.

The last raise I had was 3 years ago, and so far he hasn't invested in anything to improve my development process, as an example we have an iOS version of the app in Cordova which of course involves building , testing, working on both frontend and native side and etc., and I am working in a somewhat slow virtual machine of Monterey with just 16 GB of RAM which consumed days of my free time just to get it working and when I'm running it I need to close other apps, keep in mind I am working there for about 8 years.

The last time I needed to reconfigure my work computer and setup the virtual machine it costed me 4 days of small unpaid holiday I had taken for Christmas, just because he doesn't have the enough money to provide me with a decent MacBook laptop. I do get that its not a large company, but still I am the only developer there its not like he needs to keep paying 10 Developers.

Also:
- I don't get paid vacation
- I don't have paid holiday
- I don't have paid sick days
- My Monthly salary is 2000 euro GROSS (before taxes) which hourly translates to 12 Euro per hour
- I have to pay taxes by myself
- Working remotely has its own expenses: food, heating, electricity, internet and etc.
- There are few other technical stuff I am responsible of which I can't disclose in this post.

I don't know if I'm overacting and asking a lot, but summarizing everything the only expense he has regarding me is the 2000 euro he sends me on which of course he doesn't need to pay taxes as I'm doing that in my country.

Apart from that just in case I spend my free time in keeping myself updated with other tech which I would say I fairly experienced with like: Flutter/Dart, ES6, NodeJS, Express, GraphQL, MongoDB, WebSockets, ReactJS, React Native just to name few, some I know better than the other and still I feel like I don't get what I deserve.

What do you think, do I ask a lot or should I start searching for other job?

I used to be a sysadmin and to some extent I still am. But I absolutely fucking hated the software I had to work with, despite server software having a focus on stability and rigid testing instead of new features *cough* bugs.

After ranting about the "do I really have to do everything myself?!" for long enough, I went ahead and did it. Problem is, the list of stuff to do is years upon years long. Off the top of my head, there's this Android application called DAVx5. It's a CalDAV / CardDAV client. Both of those are extensions to WebDAV which in turn is an extension of HTTP. Should be simple enough. Should be! I paid for that godforsaken piece of software, but don't you dare to delete a calendar entry. Don't you dare to update it in one place and expect it to push that change to another device. And despite "server errors" (the client is fucked, face it you piece of trash app!), just keep on trying, trying and trying some more. Error handling be damned! Notifications be damned! One week that piece of shit lasted for, on 2 Android phones. The Radicale server, that's still running. Both phones however are now out of sync and both of them are complaining about "400 I fucked up my request".

Now that is just a simple example. CalDAV and CardDAV are not complicated protocols. In fact you'd be surprised how easy most protocols are. SMTP email? That's 4 commands and spammers still fuck it up. HTTP GET? That's just 1 command. You may have to do it a few times over to request all the JavaScript shit, but still. None of this is hard. Why do people still keep fucking it up? Is reading a fucking RFC when you're implementing a goddamn protocol so damn hard? Correctness be damned, just like the memory? If you're one of those people, kill yourself.

So yeah. I started writing my own implementations out of pure spite. Because I hated the industry so fucking much. And surprisingly, my software does tend to be lightweight and usually reasonably stable. I wonder why! Maybe it's because I care. Maybe people should care more often about their trade, rather than those filthy 6 figures. There's a reason why you're being paid that much. Writing a steaming pile of dogshit shouldn't be one of them.

So today when I was testing my new website I learned that IE/Edge does not support smooth scrolling with JavaScript.

I get why it doesn't work in IE but Edge... like what? Edge is supposed to be a modern browser... No?

!rant but seeking für help

Hi!
So my boss came to me yesterday and asked me if I could do some penetration / security testing for a web application our company made.
Interested in learning it and being familiar with HTML, PHP, JavaScript and MySQL I said yes.
Though I have some really basic knock edge of the subject (E.g SQLInjection) I was wondering if you know any good website / udemy course or whatever that can get me started.
I don't mind if there will be a certificate at the end but it is not necessary.

Thank!

Automated functional testing using selenium and javascript bindings

aka

FUCK FUCK FUCK Driven Development

I was auto populating a date field using JavaScript.
Tested. Deployed.
2 days later, the field stops populating and I don't know why??
Turns out I didn't handle the '0' for the day in my date and while testing the dates were 29-31 since end of month so didn't really see it. lol.

Working on an Android app for a client who has a dev team that is developing a web app in with ember js / rails. These folks are "in charge" of the endpoints our app needs to function. Now as a native developer, I'm not a hater of a web apps way of doing things but with this particular app their dev teams seems to think that all programming languages can parse json as dynamically as javascript...

Exhibit A:

- Sample Endpoint Documentation
* GetImportantInfo
* Params: $id // id of info to get details of
* Endpoint: get-info/$id
* Method: GET
* Entity Return {SampleInfoModel}

- Example API calls in desktop REST client
* get-info/1
- response
{
"a" : 0,
"b" : false,
"c" : null
}
* get-info/2
- response
{
"a" : [null, "random date stamp"],
"b" : 3.14,
"c" : {
"z" : false,
"y" : 0.5
}
}
* get-info/3
- response
{
"a" : "false" // yes as a string
"b" : "yellow"
"c" : 1.75
}

Look, I get that js and ruby have dynamic types and a string can become a float can become a Boolean can become a cat can become an anvil. But that mess is very difficult to parse and make sense of in a stack that relies on static types.

After writing a million switch statements with cases like "is Float" or "is String" from kotlin's Any type // alias for java.Object, I throw my hands in the air and tell my boss we need to get on the phone with these folks. He agrees and we schedules a day that their main developer can come to our shop to "show us the ropes".

So the day comes and this guy shows up with his mac book pro and skinny jeans. We begin showing him the different data types coming back and explain how its bad for performance and can lead to bugs in the future if the model structure changes between different call params. He matter of factually has an epiphany and exclaims "OHHHHHH! I got you covered dawg!" and begins click clacking on his laptop to make sense of it all. We decide not to disturb him any more so he can keep working.

3 hours goes by...

He burst out of our conference room shouting "I am the greatest coder in the world! There's no problem I can't solve! Test it now!"

Weary, we begin testing the endpoints in our REST clients....

His magic fix, every single response is a quoted string of json:

example:
- old response
{
"foo" : "bar"
}
- new "improved" response
"{ \"foo\" : \"bar\" }"

smh....

As a junior dev from a sysadmin and security background, this is a list of software development concepts I never seemed to truly understand but hope to(rated from most intimidating to least):

1) Frontend web development and all the huge world of javascript frameworks and tools. - It's more overwhelming than the political geography of the Holy Roman Empire in the Middle Ages.

2) Machine Learning, Deep Learning and A.I- too much math that fucks with my brain.

3) low-level programming(kernel,drivers) - sounds extremely interesting but the code in assembly/C/C++ looks like Linear A Minoan hieroglyphics.

4) Rx(insert language here) - I never get why it is useful or why someone invented this. Seems interesting though.

5) Code Reflection - sounds like Thelemic magick.

6) Packaging, automation, build tools, devops, CI, Testing -seems too complicated. I just want to run an executable at the client or make a web app that does something. Why all this process?

So after 7 months of soul crushing searching I was able to land an awesome job I never thought I'd get! I didn't really get hired for my projects, I think I was more of a culture fit that knew enough of what they were talking about. My colleagues are awesome, helpful people but they are also clearly way ahead of me as devs. I know that many new hires have similar feelings and it's more a matter of drive + time. I understand that and I'm ready for the marathon ahead of me but I have one HUGE concern... I don't understand unit testing. I've never written unit tests in JavaScript or Java (just on paper I wrote random assert statements for a college exam question that somehow turned out correct). More importantly, I don't understand when to write unit tests and what my main objectives should be when writing them. At work they talk about unit testing like it's just as basic as understanding version control or design patterns, both of which I have had no problems asking questions about because I at least understood them generally. I come here looking for resources, mainly things I can go through over the weekend. I understand that I'm going to have to ask my colleagues for help at some point but I DON'T want to ask for help without any solid base knowledge on unit testing. I would feel much more comfortable if I could understand the concepts of unit testing generally, and then ask my team members for help on how to best apply that knowledge. I'm sorry for begging, I'll definitely be looking for resources on my own too. But if anyone could point me to resources they found to be helpful & comprehensive, or resources that they'd want their co-workers to use if they were in my position I would be very grateful!!!!

I had very small experience on programming and applied for a dev Job kind of accidently.
But having good mathematical Background I convinced the Interviewer to give me the chance of learning during an internship. So I started a console Tool for special testing purpose with good success.
After the internship they asked me if I'm willing to lern Javascript and HTML. Though I had a lot of fun there, the answer was easy 😏
Now I'm a senior there having a team of 4-5 devs
And I still enjoy coding a lot 😎
So basically I learned coding during work

Any JavaScript developers out there willing to help me out with something?

I have an interview question that I like to ask candidates that no one ever seems to get right. But, to me, it seems pretty basic, so I expect MOST JavaScript developers at almost any level of expertise to get it, and I like it generally because it demonstrates some core knowledge of JavaScript concepts and syntax.

But I want to verify that my feelings about it are reasonable, because give how few ever seem to get it right (and I'm talking across literally hundreds of interviews, MAYBE 2 people have ever gotten it right), I'm starting to wonder if I'm right or not.

Look at this code, and then answer the question after. Please do so off the top of your head and without testing anything since that's normally the experience a candidate would have. I'll give the answer after some time for anyone who gets it wrong but is curious.

But this isn't about YOU getting it right or not, and it's not about whether it's the best way to do something in JavaScript or anything like that, it's just about whether it's a reasonable question and whether my expectation that MOST JavaScript developers should get it right is fair.

const O = {
sayHello : function() { alert("Hello"); }
};
const S = "sayHello";

Question: using ONLY the variables O and S (and you MUST use both), write code that executes the sayHello function.

Thanks!

Many "purists" love to piss on JavaScript and web development. And to an extent I can understand ostream’s frustration with these people.
It’s easy to criticize because yes: many web projects are indeed shit.

But I’d like to argue that the reason why so many of these projects are crappy is because of bad management:
- unrealistic deadlines
- no clear testing strategy
- or no testing at all because of deadlines
- no time allotted to catch up on technical debt
- etc.

This type of management is far more commonplace in web projects because things need to get delivered quickly and if they’re delivered with bugs, it’s no big deal as lives aren’t at stake.

I doubt this type of management is tolerated in projects where you’re working on software for welding machines (for example), where the stakes are that "you’re expected not to kill anyone" (to quote demolishun)

So in these types of projects, management can’t tolerate anything much below perfection and thus has to adapt by setting realistic deadlines that take into account the need for quality processes and thorough testing.

If this type of management was more common in web development, I can guarantee that web applications would be much more reliable and of better quality.
I can also guarantee that poorly managed non-web projects as outlined above would be just shitty as many web products.

My point being that’s it’s really DUMB to criticize fellow devs that work with web technologies on the basis that the state of websites/web apps is a mess. It just so happens that JS is the language of the web and that the web is where things are expected to be delivered quickly (and dirty … but we can fix it later mentality)
Stop acting like you’re the elite. I have no doubt you’re super smart and great at what you do. So be smart all the way and stop criticizing us poor webdevs that have to live with the sad state of affairs. ❤️

Email from a department mgr regarding a sharepoint site we inherited (lots of custom javascript, XLS, etc, stuff we didn't write)

Dan: "The department filter isn't showing up when I select the 'Logistics and Support' department. Was this caused by the changes you guys made? Its causing a major disruption in our processes and need it fixed ASAP."
Me: "Those changes went out almost two months ago and all the filters were working fine, at least that is what you told me when you tested it."
Dan: "I thought so, but its not working. It has probably been broken ever since you made those changes so I filed a corrective action ticket against your department for not following the documented deployment and testing processes"
Me: "Really? We've been over this. Its your department that is responsible for that sharepoint site. Previous developers hacked javacript together to make it all work, but I'm sure its something simple."
Dan: "Great. I'll start putting together a root-cause analysis to determine which of your processes we need to address."

Start looking at the javascript and found the issue..

if (dept === "Logistics & Support") {
$('deptFilter').show();
}
else {
$('deptFilter').hide();
}

Me: 'Found the issue. Did you rename the logistics department?'
Dan: 'No'
Me: 'To show or hide the filter, the code was looking for "Logistics & Support", someone changed the title to "Logistics and Support"'
Dan: "Well...I guess I did that yesterday...but I didn't change the name, just that stupid character. That shouldn't make any difference."
Me: "I can fix that right now. Are you going to need more information for your root cause analysis?"
Dan: "No, I think we're good. Thanks."

<rant>
I was once a pure server side developer. Then came full stack development. So in order to keep up with the competition, I had to brave through front-end development.

But goddamn javascript, make up your mind between functions, and “Objects”.

Also variable visibility. Goddamnit. I thought ES6 was widely supported. I was happy doing const and let bbut goddamn testing frameworks, grunt and shit. Can’t make up it’s mind to support it unitedly.

And lastly, IE. Goddamn it, why the fuck are you not supporting Promise by default. We’re fucking 2017. [insert slowpoke meme]
</rant>

One good thing though, I like the library vuejs.

Bad thing is, this is just the beginning of a much more upcoming headache.

This was initially a reply to a rant about politics ruining the industry. Most of it is subjective, but this is how I see the situation.

It's not gonna ruin the industry. It's gonna corrupt it completely and fatally, and it will continue developing as a toxic sticky goo of selfishness and a mandatory lack of security until it chokes itself.

Because if something can get corrupted, it will get corrupted. The only way for us as a species to make IT into a worthy industry is to screw it up countless times over the course of a hundred years until it's as stable and reliable as it can possibly be and there are as many paradigms and individually reasonable standards as there can possibly be.

Look around, see the ridiculus amount of stupid javascript frameworks, most of which is just shitcode upon vulnerabilities upon untested dependencies. Does this look to you like an uncorrupted industry?

The entire tech is rotting from the hundreds of thousands of lines of proprietary firmware and drivers through the overgrown startup scene to fucking Node.js, and how technologies created just a few decades ago are unacceptable from a security standpoint. Check your drivers and firmware if you can, I bet you can't even see the build dates of most firmware you run. You can't even know if it was built after any vulnerability regarding that specific microcontroller or whatever.

Would something like this work in chemical engineering? Hell no! This is how fucking garage meth labs work, not factories or research labs. You don't fucking sell people things without mandatory independent testing. That's how a proper industry works. Not today's IT.

Of course it's gonna go down in flames. Greed had corrupted the industry, and there's nothing to be done about it now but working as much as we can, because the faster we move the sooner we'll get stuck and the sooner we can start over on a more reasonable foundation.

Or rely on layers of abstraction and expect our code to be compilable on anything the future holds for us.

Testing a script embed plugin I am building on various random websites, and came across this.

Like, bruh; have you ever heard of a javascript map? Basic functional programming? Or even a switch statement?

It's the same statement, over and over again, but with different parameters. Even old javascript had enough tools to do this with at least a basic stench of "efficiency"

Junior Software Developer Job( $37k-$42k USD)

-1 year experience
- J2EE, Javascript, HTML, XML, SQL
- object oriented design and implementation
- management of relational and non-relational such as Oracle, PostGreSQL and Cassandra
- Lifecycle and Agile methods
- Familiarity with the Eclipse development environment and with tools such as Hibernate, JMS, ,TomCat/Gemini/Jetty, OSGi.
• UNIX skills, including Bash or other scripting language
• Experience installing and configuring software packages
• ActiveMQ troubleshooting/knowledge
• Experience in scientific data processing and analytical science in general
• Automated testing tools and procedures, including JUnit testing, Selenium, etc.
• Experience in interfacing with scientific instrumentation, potentially over IP networks
• Familiarity with modern web development, user interface and other ever-evolving front-end
technologies, such as React, TypeScript, Material, Jest, etc.

I am betting they don't get many people applying.

!rant
TL;DR: New(-ish) dev looking for advice to improve workflow and new languages. Hopefully worth a read though :)

Newbie developer here, I took a web applications development class this year since I could take that at another campus rather than do general education courses at my home school, and I have learned and earned a CIW Certification for HTML5, CSS3, and JavaScript, though I know the certificates do squat if I can't apply myself to them, and I have learned PHP and MySQL.

I want to learn more, technically-applicable languages.

My setup is barebones (to a Linux diehard's eyes), with a gaming laptop that I do a lot of workstation stuff on, an RPi 3 B that I do some Linux-y stuff on, and a less-powerful Development Laptop (that I call a devtop) that I occasionally do work away from home on.

I'm sure most will cringe and weep at my workflow, as I use Windows 10 on both systems and the standard NOOBS software on the pi, and I use Brackets as my text editor, as well as the XAMPP AMP stack for testing.

My biggest questions are what could I do to improve my workflow, and what languages should I learn/apply myself to for real-world application (such as Node.js for live-updating server-side applications or C# for Windows applications)?

Thank you for taking the time to read this, any feedback is helpful! I'm just a high school student with a lot of enthusiasm for development!

My ideal dev job, would be a job I can show compassion towards. A team I can be proud of and learn from. And a vibrant workspace with likeminded individuals who just want to improve themselves even if they feel their at their pinnacle.

My current office tries to make use of new technologies, we've embedded docker, vagrant, a few ci systems on an in need basis per team, and a lot of other tools.

My only real qualms are they feel indifferent towards new languages and eco systems ( Node.js, GoLang, etc ). Our web team is still using angular.js 1.x, bower, refuses to look into webpack or a new framework for our front end which is currently being bogged down by angulars dirty checking.

Our automated quality assurance team is forced to use Python for end to end testing, I've written an extensive package to make their lives easier including an entire JavaScript interface for dispatching events and properly interacting with custom DOMs outside of the scope of the official selenium bindings.

Our RESTful services are all using flask and Python, which become increasingly slow with our increase in services. I've pushed for the use of Node or GoLang with a GraphQL interface but I'm shot down consistently by our principle engineers who believe everything and anything must be written in Python.

I could go on, but tldr; I'm 21 and I have a ton of aspirations for web development. I'd like to believe I'm well rounded for my age, especially without any formal education. I'd love to be surrounded by individuals who want the same, to learn and architect the greatest platforms and services possible.

Hey DevRant!

Not really a rant but a question:
I just got accepted into a coding bootcamp. Have any of you been involved in one? How was it? What would you do to make it a better experience throughout? Any advice or suggestions?

It's full time, six months long and I start in October and I want to make sure I make the most of the experience and absorb as much as possible.

I'm super happy that the course appears to be less just learning JavaScript and more involved in the Computer Science side of things, even including bits about C/C++, distributed systems, algorithms and data structures, software design/testing, cryptography, database management, and computer architecture. It also, of course, covers tons of resume work, interview practice, and networking.

Thanks!

I just want to use Jest to unit test my Typescript classes, but that appears to be impossible!
Testing the compiled Javascript instead doesn't seem to recognize any classname at all :(

If you do not push something (language, education, people, cars, design, medicine ...etc etc) how the hell do you expect to mature, surpass expectations and become better. Java didn't start off as good or as bad as it is today. It was through testing, abuse, use and pushing it harder do more and more amazing things that it wasn't built for. PHP has changed alot since I started using and it's through people efforts that it gets better. Before the javascript wave came it was a nuisance to use and sucked as most browsers had it switched off by default but it's become more secure, fluent and able to do more amazing things and people are loving it right now.

I really wish people would stop with half arsed and uneducated comments.

Urgh.. the amount of things you have to know as a developer.. it can get stressful and frustrating sometimes when (in-depth) technology knowledge is demanded from you (for instance, for a job position)..
It's like being a doctor, being a lifelong student.

A few examples of what I had to know during my career:
Java, .NET, Python, PHP, JavaScript/HTML5/CSS3, Sass/Less, Node.js, ReactJS, AngularJS, Vue.js, Cordova, Ionic, Android, design patterns, SOLID, databases (design, implementation, administration, both NoSQL and relational,..), deployment tools (Octopus, Jenkins,..), VCS, CI/CD, HTTP, networking, security (OAuth2, CORS, XSS, CSRF,..), algebra, algorithms, software testing, profiling, Linux, Unix, Windows, MS Office (advanced mail filtering,..), ITIL, IT Law (licensing and its implications when choosing a product, distribution right,..), server architecture,..

Sure yeah, I know, I've studied all that at university but.. it's been too long (almost a decade now). I have to revisit that knowledge.

A former team lead decided the team should review any open PR before proceeding with their own tasks after their breaks. Any open PR also meant reviewing refinements in an ongoing discussion. Several times, we wasted time for review, coding, and discussing when the second reviewer asked to revert the changes introduced according to the requests of the first reviewer.

Now as a freelancer, in smaller projects, I sometimes have no coworkers to review my code. So, apart from testing, I try to pay more attention to linters, static code analysis and automated coding assistance. I have stylelint, eslint, SonarLint, and possibly some more IDE inspections. For the infamous popular blogging software, I also have a so-called PHP code sniffer that checks all PHP and JavaScript code for compliance with the WordPress coding styles, so finally, I got the team experience back: SonarLint suggests removing unnecessary spaces and reformating my code, which in turn makes PHPCS complain that the code violates the legacy code style.

My work product: Or why I learned to get twitchy around Java...

I maintain a Java based test system, that tests a raster image processor. The client is a Java swing project that contains CORBA bindings to the internal API of the raster image processor. It also has custom written UI elements and duplicated functionality that became available in later versions of Java, but because some of the third party tools we use don't work with later versions of Java for some reason, it's not possible to upgrade Java to gain things as simple as recursive directory deletion, yes the version of Java we have to use does not support something as simple as that and custom code had to be written to support it.

Because of the requirement to build the API bindings along with the client the whole application must be built with the raster image processor build chain, which is a heavily customised jam build system. So an ant task calls out to execute a jam task and jam does about 90% of the heavy lifting.

In addition to the Java code there's code for interpreting PostScript files, as these can be used to alter the behaviour of the raster image processor during testing.

As if that weren't enough, there's a beanshell interface to allow users to script the test system, but none of the users know Java well enough to feel confident writing interpreted Java scripts (and that's too close to JavaScript for my comfort). I once tried swapping this out for the Rhino JavaScript interpreter and got all the verbal support in the world but no developer time to design an API that'd work for all the departments.

The server isn't much better though. It's a tomcat based application that was written by someone who had never built a tomcat application before, or any web application for that matter and uses raw SQL strings instead of an orm, it doesn't use MVC in any way, and insane amount of functionality is dumped into the jsp files.

It too interacts with a raster image processor to create difference masks of the output, running PostScript as needed. It spawns off multiple threads and can spend days processing hundreds of gigabytes of image output (depending on the size of the tests).

We're stuck on Tomcat seven because we can't upgrade beyond Java 6, which brings a whole manner of security issues, but that eager little Java updated will break the tool chain if it gets its way.

Between these two components we have the Java RMI server (sometimes) working to help generate image data on the client side before all images are pulled across a UNC network path onto the server that processes test jobs (in PDF format), by reading into the xref table of said PDF, finding the embedded image data (for our server consumed test files are just flate encoded TIFF files wrapped around just enough PDF to make them valid) and uses a tool to create a difference mask of two images.

This tool is very error prone, it can't difference images of different sizes, colour spaces, orientations or pixel depths, but it's the best we have.

The tool is installed in both the client and server if the client can generate images it'll query from the server which ones it needs to and if it can't the server will use the tool itself.

Our shells have custom profiles for linking to a whole manner of third party tools and libraries, including a link to visual studio 2005 (more indirectly related build dependencies), the whole profile has to ensure that absolutely no operating system pollution gets into the shell, most of our apps are installed in our home directories and we have to ensure our paths are correct for every single application we add.

And... Fucking and!

Most of the tools are stored as source bundles in a version control system... Not got or mercurial, not perforce or svn, not even CVS... They use a custom built version control system that is built on top of RCS, it keeps a central database of locked files (using soft and hard locks along with write protecting the files in the file system) to ensure users can't get merge conflicts by preventing other users from writing to the files at all.

Branching is heavy weight and can take the best part of a day to create a new branch and populate the history.

Gathering the tools alone to build the Dev environment to build my project takes the best part of a week.

What should be a joy come hardware refresh year becomes a curse ("Well fuck, now I loose a week spending it setting up the Dev environment on ANOTHER machine").

Needless to say, I enjoy NOT working with Java. A lot of this isn't Javas fault, but there's a lot of things that Java (specifically the Java 6 version we're stuck on) does not make easy.

This is why I prefer to build my web apps in python or node, hell, I'd even take Lua... Just... Compiling web pages into executable Java classes, why? I mean I understand the implementation of how this happens, but why did my predecessor have to choose this? Why?

Why are there so many testing framworks for JavaScript? Jasmine, mocha, buster ... and for spies, stubs and mocks, there is sinon and for assertions, there is chai. And oh you can record entire external api calls with nock and whatever else I forgot. I am a bit overwhelmed by this overambundancy of libraries. Writing tests is supposed to be easy.

"I want to play a game"

In my company we are constricted to have 100% of f̶a̶k̶e̶ coverage with unit test.
Obviously the test suites are not performing and it takes more than 8 minutes to run 3335 tests.

I know that what I'm going to say is super mainstream but there is nothing comparable to the relief that comes from seeing all tests in green after you did a lot of small changes around the code on Friday.

A very long rant.. but I'm looking to share some experiences, maybe a different perspective.. huge changes at the company.

So my company is starting our microservices journey (we have a 359 retail websites at this moment)

First question was: What to build first?

The first thing we had to do was to decide what we wanted to build as our first microservice. We went looking for a microservice that can be used read only, consumers could easily implement without overhauling production software and is isolated from other processes.

We’ve ended up with building a catalog service as our first microservice. That catalog service provides consumers of the microservice information of our catalog and its most essential information about items in the catalog.

By starting with building the catalog service the team could focus on building the microservice without any time pressure. The initial functionalities of the catalog service were being created to replace existing functionality which were working fine.

Because we choose such an isolated functionality we were able to introduce the new catalog service into production step by step. Instead of replacing the search functionality of the webshops using a big-bang approach, we choose A/B split testing to measure our changes and gradually increase the load of the microservice.

Next step: Choosing a datastore

The search engine that was in production when we started this project was making user of Solr. Due to the use of Lucene it was performing very well as a search engine, but from engineering perspective it lacked some functionalities. It came short if you wanted to run it in a cluster environment, configuring it was hard and not user friendly and last but not least, development of Solr seemed to be grinded to a halt.

Elasticsearch started entering the scene as a competitor for Solr and brought interesting features. Still using Lucene, which we were happy with, it was build with clustering in mind and being provided out of the box. Managing Elasticsearch was easy since there are REST APIs for configuration and as a fallback there are YAML configurations available.

We decided to use Elasticsearch since it provides us the strengths and capabilities of Lucene with the added joy of easy configuration, clustering and a lively community driving the project.

Even bigger challenge? Which programming language will we use

The team responsible for developing this first microservice consists out of a group web developers. So when looking for a programming language for the microservice, we went searching for a language close to their hearts and expertise. At that time a typical web developer at least had knowledge of PHP and Javascript.

What we’ve noticed during researching various languages is that almost all actions done by the catalog service will boil down to the following paradigm:

- Execute a HTTP call to fetch some JSON

- Transform JSON to a desired output

- Respond with the transformed JSON

Actions that easily can be done in a parallel and asynchronous manner and mainly consists out of transforming JSON from the source to a desired output. The programming language used for the catalog service should hold strong qualifications for those kind of actions.

Another thing to notice is that some functionalities that will be built using the catalog service will result into a high level of concurrent requests. For example the type-ahead functionality will trigger several requests to the catalog service per usage of a user.

To us, PHP and .NET at that time weren’t sufficient enough to us for building the catalog service based on the requirements we’ve set. Eventually we’ve decided to use Node.js which is better suited for the things we are looking for as described earlier. Node.js provides a non-blocking I/O model and being event driven helps us developing a high performance microservice.

The leap to start programming Node.js is relatively small since it basically is Javascript. A language that is familiar for the developers around that time. While Node.js is displaying some new concepts it is relatively easy for a developer to start using it.

The beauty of microservices and the isolation it provides, is that you can choose the best tool for that particular microservice. Not all microservices will be developed using Node.js and Elasticsearch. All kinds of combinations might arise and this is what makes the microservices architecture so flexible.

Even when Node.js or Elasticsearch turns out to be a bad choice for the catalog service it is relatively easy to switch that choice for magic ‘X’ or component ‘Z’. By focussing on creating a solid API the components that are driving that API don’t matter that much. It should do what you ask of it and when it is lacking you just replace it.

Many more headaches to come later this year ;)

Me debugging javascript, code testing go code and using python to make everything work together. My brain has started misspelling keywords and creating weird syntax.I get exhausted so quickly.

When testing JavaScript I end up logging 'pie' a lot

Trying to learn JavaScript unit testing with Vue.js and it's not going well. Took long enough just to get everything installed and now it errors as it doesn't understand <template> tags. Why is it so difficult?

That feeling when you're applying for your first programming job.

And the knife stabs of nerves in your gut fearfully remind the coiled muscles in your sweaty brow of the singular possibility: what if I bullshit my way by the HR filter into this job and it turns out I was completely wrong, and I encounter a bug that my meager coding abilities really can't fix?

"Writing an interpreter in some community college you dropped out of ten years ago" doesn't mean you're a programmer.

"Figuring out where the bug was in a broken bat file that was pages long, for a language and framework you've never used, for a library nobody uses anymore", doesn't count as debugging.

"Writing a tweening library in an obscure tool" doesn't mean you're an expert. This is childs play.

What if they ask about big O? Do you admit that logarithms confuse the fuck out of you because you dropped out in 8th grade and got your GED later on due to being kicked out by your meth head dad?

What if being able to write a few measly cobbled together half-arsed estimate tools in python doesn't really mean you're qualified to do anything?

What if being able to look at code in languages you've never seen and grok it doesn't mean shit?

What if you've used more languages than you can remember?

What if you once lost a job offer casually given because the guy you built rapport with over months made a joke about browsers, and you joked about using internet explorer?

What if you got a job offer from a consultant friend one time and he asked you to write validation and testing code in javascript for amazon's cloud, and you completely screwed the pooch because you spent the entire time thinking you had to make it *work* and not just *look* correct, when all along he just wanted what amounted to *correct looking* code, and your gut had told you the same, but you ignored it, because the world can't possibly work like that, where people give anyone a chance or the benefit of the doubt, and any slip up or shortcoming means you were never really worthy to begin with.

What if you thought you could, but you'd been raised your entire life to *believe* you couldn't?

!rant
I have my 121 in a few days with my new manager and am trying to get a raise either through moving from junior to mid level dev or being given a significant raise , am being paid a tad below the London market rate's lower range for my skill level.

Any advice on how to approach the topic?

Some bits of my background:

I got almost 4 years of exp :
almost 2 working there...
6 months short term contract as a ruby sql dev another company...
1.5 years worked for an abusive joke of a company who took advantage of my naivety since i was fresh out of uni ( did stuff like pressured me to add more features to a pojo system i made for them) barely learned anything there since i was the only IT person there developing solo, the project lasted 1.5 years and was a total mess to finish, so am not too sure of factoring it into my years of exp.

My Qualifications are:
bsc in information systems
Msc in enterprise sw engineering

My "new" Manager is seeking to retire real soon.

The company isn't doing too well but we just landed 2 big customers who are buying the product my team is working on

I Am one of two last devs on my team and we are barely holding on with the load, can't afford the time to train a newbie to join us

my department is soon to be sold (soon according to what mgr says). They have been saying so for 10 months now.

Last year , since the acquisition Is taking so long and funds were running out We were hit by a wave of redundancies which slashed our workforce in august/ july, told we could last till march this year on our funds . Even senior staff were on a reduced work week...but since we Got new customers then money should be coming in again , this should mean thats no longer the case. Even the senior staff have returned to 5 day work weeks.

Am being given only JavaScript work to do despite being hired as a junior java dev, my more senior colleagues dont wanna even touch js with a long stick

Spoke to 3 recruiters , said they got open roles in the junior- mid level range that pay the proper market range if am interested to put my cv through.
Thats like 25% more than I currently make.

Am a bit scared to jump into a mid level position in another company because i lack a bit confidence in my core java skills.
although a senior dev who used to be on my team thinks i can do it.
i recon i can take on the responsibilities of a mid level dev in me existing company since am pretty familiar with the products

I dont get to work with senior devs and learn from them since we are so stretched thin, hence am not really getting the chance to grow my skills

I know i have gaps in my knowledge and skills having not been able work in java for a while hasn't allowed me to fix that too well. I badly need to learn stuff like proper unit testing, not the adhoc rubbish we do at the moment, frameworks like spring etc

Since I have been pretty much pushed into being the js guy for the large chunks of the project over the last year , its kinda funny am the only guy who has the barest idea how some of the client facing stuff works

The new manager does seem to be a nice guy but he is like a politician, a master bullshitter who kept reassuring all is well and the company is fineeee (just ignore the redundancies as the fly past you)

The deal for thr aquisition seem to have sped up according to rumors
And we heard is a massive company buying us, hence things might pick up again and be better than ever

Any ideas how to approach the 121 with him?

Any advice career wise?
Should i push for a raise ?
promotion to mid?
Leave to find a junior to mid level position?
Tought it out and wait for the take over or company crash while trying to fill the gaps in my knowledge ?

Sorry for the length of this post

I swear I touched some weird and complex programming shit in over a decade of programming.
I interfaced myself through C# to C++ Firmware, I wrote Rfid antennas calibration and reading software with a crappy framework called OctaneSDK (seems easy until you have to know how radio signal math and ins and outs work to configure antennas for good performance), I wrote full blown, full stack enterprise web portals and applications.with most weird ass dbs since the era of JDBC, ODBC up to managed data access and entity framework, cloud documental databases and everything.

Please, please, please, PLEASE I BEG YOU, anyone, I don't even have the enough life force to pour into this, explain me why the hell Jest is still a thing in javascript testing.

I read on the site:
"Jest is a delightful JavaScript Testing Framework with a focus on simplicity."

Using jest doesn't feel any delightful and I can't see any spark of focus and simplicity in it.

I tried to configure it in an angular project and it's a clustefuck of your worst nightmares put togheter.

The amount of errors and problems and configurations I had to put up felt like setting up a clunky version of a rube goldberg's machine.

I had to uninstall karma/jasmine, creating config files floating around, configure project files and tell trough them to jest that he has to do path transformations because he can't read his own test files by itself and can't even read file dependencies and now it has a ton of errors importing dependencies.

Sure, it's focused on simplicity.

Moreover, the test are utter trash.

Hey launch this method and verify it's been launched 1 time.
Hey check if the page title is "x"

God, I hate js with passion since years, but every shit for js I put my hands on I always hope it will rehab its reputation to me, instead every fucking time it's worse than before.

Looking at jest errors and loads of GitHub and StackOverflow issues, it's no surprise that people claim they don't like testing.

Maybe they would if we got our tooling right.

import { foo } from 'bar';

Nah, that's an unexpected token, jest does not like this syntax.

Using require, like in jest's getting started tutorial isn't compatible with my existing JS libraries exports.

Adding type: "module" in package.json just makes another error message appear instead.

Fucking developer experience!

Why bother with unit tests at all?

How come PHP is 10 years superior to JS when it comes to code quality, unit tests, and static code analysis?

I don't even care about "ES modules". I don't want to "mock" anything either. All I want to do is import a handful of JavaScript functions into another file.

Overengineered web dev stack sucks!

I've been trying and testing all kinds of frameworks to get up to speed with modern development. Tinkered with VUE. That was fun. Tinkered with Laravel. Also fun.

Now I'm looking at Agular. Sweet mother of christ, they want me to learn all this shit just to do some Javascript?

I would rather stock shelves at a supermarket then learn yet another crappt framework that will be redundant in 5 years. I'll wait for the next one.

I recon the new project is off to a good start...

JavaScript, go home, you're drunk

Has anyone experience with Frontend Testing and can suggest something good?
Note: JavaScript / Node JS

Jest - painless javascript unit testing

"pAinLesS jAvsCriPt uNiT tEsTinG"

We got this feature on our app where if you change the status of an action item, it moves down/up to join its brethren of the same status at the bottom of its respective grouping. This is also true for creation.

Problem is: Testing.

I embarked upon this fuckin ridonkulousness today where I had to test all possible scenarios. Empty list, list with only A status, list with only B, list with A and B, list with A and C, etc etc

9 fucking hours later and a lot of anger, I am finally done. I powered back probably 10 club sodas, 6 teas, and had chillstep rollin all day.

If y'all ever feel like giving up because shit's hard, keep pushin. You'll get it eventually ;)

When one server request goes through and second one fails😥 and then you start contemplating life because the only thing that you thought will stick around with you till the end says ' Uncaught in Promise '!

time to head into javascript code testing, as i'm annoyed af of testing everything by hand whether my feature works and find the cause to some problems i have encountered
.... but first let me "npm init -y" and "npm i jest" (as the tutorial suggests) real quick in my git project ... whoops😯😐😶🤨 ... woah, ok ... 5000 added files, shit, dependencies 🙄... delete all ... git error😐😥
delete folder manually😪😅
resuming paused tutorial: "and if you've got a git repository, just install jest globally, do not do this in your repo!"
.... just happened to me😑😅

Sophomore year starting soon so I'm looking for new project (s) to complete in parallel with the studies.
Some are more design-y and some more backend-y but I recently started getting better at designing so :)

1) Learn some fragment shader stuff. I've always been messing around with graphics and have a game on steam, so I think that's a good idea to be paired with signal processing.

2) Reactive web services. Preferably with spring-boot or vert.x but

3) I would also like to dive into golang (and make some reactive thing with it)

4) WebAssembly seems nice... But I got some concerns

5) exercise making wireframes -> CSS (with some js)

6) I've never really done any real backed work with nodejs, except serving and aot compiling js, or doing gulp tasks

7) Implementing a whole project, or a fraction of it as serverless on aws

* I'm definitely going to use a couple very simple services to make a docker swarm with load balancing, etc, just because I know how everything works but got no practical knowledge

8) Design an esports jersey for the university department I'm in (shouldn't take long)

So what do you guys think? Recommendations are welcome :)

P.S. last year in review:
> A webapp running on a raspberry pi powering a reflex testing game on gpio (java/spring-boot , codename: buttonmasher)
> small Elastic search cluster to monitor some random university servers through kibana dashboards
> laser tracking on wall of *any* colour and variable light conditions via a webcam (opencv) , controlling the mouse pointer, whether you run it against a projector or any wall
> jstrain.herokuapp.com => a small JavaScript powered tool with a DSL to help you train more efficiently without a coach
> Various random Photoshop stuff

When you have to block a email address from a website providing you a great way to have a payment form for your client because they didnt implement the unsubscribe and you get spammed at every test

Just got hired for an internship duing QA testing for an insurance companies software team. I've been told their systems run mostly Java, SQL, php, JavaScript, and a little bit of Cobol. Any advice, tips, or things to look out for?

Is there a testing library of source code snippets for testing babel plugins?

Ideally a pack of like all possible javascript snippets? Otherwise how do you know if your plugin may ever fail or cause bad code?