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Search - "optional parameters"
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That moment when you would get graded 4.5/5, but you got 3.5 because you made a joke about Java.
Did you know that back in the good ol' days (1-2 years ago lol) - If you wanted to have a function with optional parameters, you would need to create an overload without that parameter?
Which isn't that bad, until you realize that a function with 4 optional arguments would require 16 overloads (basically n^2).14 -
I used to be a Java fanboy.
After seeing the modern things one can do with other languages I am just disappointed, that Java is so old-fashioned.
Some would say "BUT IT HAS LAMBDAS".
Good, that we have lambdas. We don't have optional parameters or objects (like in JS's {} or PHP's stdClass).
JVM may have many advantages, but I think, that Java is slowly dying although it is kept alive by some companies, still using Java in prod.
I think, that Kotlin is, what Java should have been.
I hope, that my wishes will be implemented in Java 10. If not, Java is considered as dead.8 -
Lua users, have you used moonscript?
It's a little language that has it's own interpreter or can be compiled down to Lua and it's absolutely lovely (currently using it with Love2d).
Of course, as with most things, what I love about it also royally pisses me off sometimes.
For starters local has to be declared for variables, unlike lua.
Otherwise the variable goes to _
Also note, that some tutorials literally tell you the opposite.
all variables are local by default
unless you don't declare them
then they go to _ (throwaway)
Some tutorials get this wrong too.
all variables have to be declared local
except tables. failure to declare a table WITHOUT a local will cause things like
table.insert to fail with "nil" values for no god damn reason.
No tutorial I could find mentioned this.
Did you know we call methods with '\'?
By the way, we call methods with '\'.
Why? Who the fuck knows.
Does make writing web routes more natural though.
Variables in the parameters of new are declared and bound for you. Would have loved to know this before hand instead of trying
to bind to them like a fucking idiot.
Fat arrows are used to pass in self for methods.
Unless you're calling a method. Then you use backwards slash. This fact is unhelpful when you're a beginner and dealing with the differences between the *other* arrow, the backslash, the fat arrow, and the fact that functions can be called with or WITHOUT parenthesis.
And on that note..
While learning all this other shit, don't forget parenthesis are optional!
Except when they're not!
..Like when you have a function call among your arguments and have to disambiguate which args belong to the outer call and to the inner call! Why not just be fucking consistent?
But on the plus size, ":" is now used for what it should have been used for in the fucking beginning: binding values to keys.
And on the downside, it's in a language thats built on top of another language that uses it for fucking *method calls*, a completely
different fucking usage.
And better still, to add to that brainfuckery thats lost in the mental translational noise like static on a fucking dialup modem, you define methods with the fat arrow. Wait, was that the single arrow or fat one? Yeah the fat one. Fuck. But not before you do THIS shit..
someShit: =>
yeah, you STILL include the god damn colon just so when you're coming from lua you can do a mental double take. "Why am I passing self twice? Oh right, because fuck me, I decided to use moonscript." It's consistent on that front but it also pisses me off.
A lot of these are actually quality of life improvements disguised as gotchas, but when you're two beers in to a 30 minute headscratcher it sure doesn't fucking feel like it.
Nevertheless, once I moved beyond the gotchas, it was like night and day. Sure moonscripts takes a giant steaming dump all over the lua output, like a schizophrenic alcoholic athena from the head of zeus, but god damn, when it works it just WORKS.
Locals that act like locals? Check.
Sane OOP? Check.
Classes, constructors, easy access to class methods, iterators? Check, check, check, check, check.
I fucking hate ceremony. Configuration over convention is for cunts. And moonscript goes a long ways toward making lua less cunty.
If you've ever felt this way while using lua, please, give moonscript a try.
You'll regret it, but in a good way!6 -
For the last time, ES5 DOESN'T support optional function parameters. gulp --production fails when running on testing when you do that.
*fixes gulp tasks to do gulp --production by default*
Next day : hey, why does gulp keep failing.
IT IS BECAUSE YOU DIDN'T LISTEN TO ME THE LAST 100 TIMES WHEN I SAID OPTIONAL PARAMETERS DOESN'T WORK WHEN MINIFYING
Let's see how you do it now.3 -
Why does the documentation in the website for API doesn't include the optional parameters to use?
Why are you making my life harder!
Good thing their github.io docs has the documentation for the parameters I needed.
So, why not include it in the official documentation?! -
Why has nobody at Microsoft thought of implementing optional parameters for functions in SQL Server? I guess backward compatibility is something they haven't heard of. I mean hell, Postgres can do it easily.2
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There's a special place hell for people who put their entire documentation on using an NPM package in the fucking READ.ME file.
I shouldn't have to play whack a mole through one giant ass file to figure out how a specific function works. Or figure out how specific optional parameters need to be defined.3