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SkillsJava
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LocationColombia
Joined devRant on 11/11/2017
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--- HTTP/3 is coming! And it won't use TCP! ---
A recent announcement reveals that HTTP - the protocol used by browsers to communicate with web servers - will get a major change in version 3!
Before, the HTTP protocols (version 1.0, 1.1 and 2.2) were all layered on top of TCP (Transmission Control Protocol).
TCP provides reliable, ordered, and error-checked delivery of data over an IP network.
It can handle hardware failures, timeouts, etc. and makes sure the data is received in the order it was transmitted in.
Also you can easily detect if any corruption during transmission has occurred.
All these features are necessary for a protocol such as HTTP, but TCP wasn't originally designed for HTTP!
It's a "one-size-fits-all" solution, suitable for *any* application that needs this kind of reliability.
TCP does a lot of round trips between the client and the server to make sure everybody receives their data. Especially if you're using SSL. This results in a high network latency.
So if we had a protocol which is basically designed for HTTP, it could help a lot at fixing all these problems.
This is the idea behind "QUIC", an experimental network protocol, originally created by Google, using UDP.
Now we all know how unreliable UDP is: You don't know if the data you sent was received nor does the receiver know if there is anything missing. Also, data is unordered, so if anything takes longer to send, it will most likely mix up with the other pieces of data. The only good part of UDP is its simplicity.
So why use this crappy thing for such an important protocol as HTTP?
Well, QUIC fixes all these problems UDP has, and provides the reliability of TCP but without introducing lots of round trips and a high latency! (How cool is that?)
The Internet Engineering Task Force (IETF) has been working (or is still working) on a standardized version of QUIC, although it's very different from Google's original proposal.
The IETF also wants to create a version of HTTP that uses QUIC, previously referred to as HTTP-over-QUIC. HTTP-over-QUIC isn't, however, HTTP/2 over QUIC.
It's a new, updated version of HTTP built for QUIC.
Now, the chairman of both the HTTP working group and the QUIC working group for IETF, Mark Nottingham, wanted to rename HTTP-over-QUIC to HTTP/3, and it seems like his proposal got accepted!
So version 3 of HTTP will have QUIC as an essential, integral feature, and we can expect that it no longer uses TCP as its network protocol.
We will see how it turns out in the end, but I'm sure we will have to wait a couple more years for HTTP/3, when it has been thoroughly tested and integrated.
Thank you for reading!26 -
Best boss I have ever had?
He owned a car dealership and made me the first fulltime employed webdev in a car dealership in germany.
He believed in me and our mutual vision, and we had an awesome 7.5 years together. he gave me time to develop myself and to develop software and websites.
through my software and process optimization we were able to go from 300 sold cars per year to 3000 without hiring any more employees and without increasing workload and stress on the employees.
When I had my last day at his company, he didn't show up.
I was mad like hell, because we have spent so much time together, went to many countries together, even slept in the same hotel bed! I considered him pretty much a friend, even though he was my boss and 10 years older.
Much later he told me that he didn't show up on my last day because he didn't want to cry.
now we meet every 3 months and go out, eat and drink and just talk and laugh.
best guy ever, will never forget what he did for me.12 -
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?36 -
Facebook: "Our facial recognition automatically tags people in pictures."
Tesla: "Our deep learning algorithm drives cars by itself."
Andrew Ng: "I predict patients' likelihood of dying with 99% accuracy."
Google: "You know one of our algorithms is going to pass the Turing test very soon."
Wall Street: "We use satellite images to predict stock prices based how filled car parks of specific stores are."
The remaining majority of data sciencists: "We overfit linear models."2 -
The worst kind of bugs are logical ones, they go undetected, no error, no alert, and when you notice them, it's too late.3
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Historically, tattoo artists would operate free of charge on women's breasts. This was an attractive offer for both sides, and spawned the phrase "tit for tat", which now represents two sides of an argument offering items of equal value.
This is a fact I just made up, like "Java runs on 4 billion devices"9 -
Don't know why people are so against java. Can anyone of you please care to point me to an enterprise programming language which exposes like 100 services over http and still has a maintainable codebase. I always wonder with frameworks like spring, etc java works alright on multiple cores. Are there any other good enterprise languages?6
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I was only seventeen back then and I was a Java Developer Intern, not knowing much about enterprise oriented coding.
The project leader in our dev team saw a lot of potential and passion in my work, but was convinced I wasn't taught enough to do the right thing.
I was mainly doing shitty mappers and services back then, which were somewhat used but never lasted long and were ditched a few months later, which always bummed me out. I wanted to make an impact on REAL projects that would deploy into production.
So Mister Mentor (GDPR forbid to use the actual name), who was always first to come and last to leave the office, taught me what it means to code for real.
We stayed after 5pm until 7-8pm multiple times a week and he taught me in a deeply understanding and calm way how to:
- Git (SVN)
- Refactor
- SOA
- Annotate
- Deploy
- Unit Test
And most importantly:
- How to debug like an absolute BOSS
(We even debugged native Java Libraries just for fun to see if we could break them)
Fast-forward a month later and little intern me made his first commit on production.
Without Mister Mentor, I wouldn't be half as good of a developer as I am today.3 -
If you are teaching a newbie HTML and basic JS using ES6/ES2015 features, the "Hello World" app probably would be:
<!-- index.html -->
<html>
<body>
<div id='container'>
<h2> Enter a Name and Hit The Button</h2>
<input id='name'>
<button id='change-name'>Say Hello</button>
<h3 id='name-display'></h3>
</div>
<script type='module' src="./index.js"></script>
</body>
</html>
//index.js
import {sayHello} from './hello.js';
let displayArea = document.getElementById('name-display');
let input = document.getElementById('name');
let button = document.getElementById('change-name');
button.addEventListener('click', () => {
//displayArea.innerHTML = "Hello World"
displayArea.innerHTML = sayHello(input.value);
});
//hello.js
export const sayHello = (name='World') => {
return `Hello ${name}`;
};
Source: https://github.com/benmccormick/...7 -
Always be humble and always keep learning. No matter how good you get, there is always some better.4
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"Engineers don't memorize documentation. They know how to use it."
Programming felt insurmountable to me before I started with it. This phrase blew my mind and changed my approach entirely.3 -
If Gordon Ramsay made code reviews, I would watch that show. Especially the insults he would use for handling clients.
"This code has so much spaghetti, it decided to open it's own restaurant"23 -
Dear junior programmers:
You will never get hired from what you learned at University
You have to study on your own, update your knowledge, practice at home and fail
The most important is to know which field to focus on10 -
Buzzword dictionary to deal with annoying clients:
AI—regression
Big data—data
Blockchain—database
Algorithm—automated decision-making
Cloud—Internet
Crypto—cryptocurrency
Dark web—Onion service
Data science—statistics done by nonstatisticians
Disruption—competition
Viral—popular
IoT—malware-ready device15
