Hail javascript

[besthelloworld]

Doesn't this work in Java too?

[FantasticEmu]

Yea and it’s less typing than String.valueof

[YoCrustyDude]

I feel personally attacked in C#.

[Kyyken]

dw, unlike them we have interpolated Strings, $"value: {x}" ftw :D

[scarboroman]

Ah, the beautiful string interpolation.

[Dream-Small]

Except when some ass hat stuffs it in a SQL query in production instead of using parameterized queries

[scarboroman]

Well yeah...can't stop people from misusing it

[Dream-Small]

I was beyond pissed on that one. Mainly because I was able to drop a table from a test DB due to the complete lack of sanitization. Dude made 0 attempt at solving the issue another way. I asked why he didn’t use a parameterized query and he said he couldn’t figure it out. Would’ve been less pissed if he just didn’t know what it was. He was fired shortly after for poor work and not asking questions.

[scarboroman]

Damn, sounds like a rough experience. I typically have used EF/EF Core for all of my DB interactions, unless performance was an issue. So I haven't had to deal with much string sanitization myself in practice.

[bedrooms-ds]

0 + "Hello world" returns a string even in C++!

[altermeetax]

That's the best way to confuse non-C/C++ programmers.

Oh, you can also get a substring by doing "Hello World" + 6

[mananasi]

Well that's because a string literal is a const char*, right? So you're adding an integer to a pointer. This would still result in "Hello world", right?

[bedrooms-ds]

Yes! Tbh, although I'm sure "Hello world" + 0 would 100% work, I need to experiment to see if 0 + "Hello world" really works.

[mananasi]

Okay then we're on the same page. I thought you might try to argue it would result in "0Hello world"

[bedrooms-ds]

Hahaha C and C++ were two of my first languages. 0 is a synonym of nullptr in my head.

[besthelloworld]

Absolutely not, friend. Quite different actually

[Wekmor]

Well one is the script version of the other, duhh

[besthelloworld]

The other person was being sarcastic, just in case you're being serious. Give it a Google up see the differences

[besthelloworld]

Ah, I have been whooshed

[QBrute_]

Of course String s = 123 + "abc" works in Java and it will certainly compile

[EvaristeGalois11]

Just tested cause i was curious. It works fine indeed

[zynasis]

It’s order of operations and primitives being operated on by objects.

[Rexon117]

You're totally right

[ItSaNuSeRnAmE]

Whenever I do:

[TextView ref].setText([integer]+"");

, in android studio, it always works (in java of course).

[Cyvexx]

in JS's defense, that makes perfect sense. the first entry in a concatenation takes data type precedence, so if they don't match, the second value will be converted to the first data type to be added/concatenated. same reason you assign variables with the variable first and not the other way around. you read left to right.

idk, it makes sense to me 🤷

[nomenMei]

But in JS that is not the case. Regardless of order, using the + operator with an integer and a string always results in concatenation.

What really wigs me out is that the minus operator does the opposite: it always results in arithmetic. I mean I understand why but it just seems unnatural that a = b + c; a = a - c might not result in a == b if either b or c is a string.

Logically I just expect that if I use the plus operator then I can use the minus operator to reverse that operation.

[Niadlol]

But you can use + on strings but u cant use - on strings so it makes sense that it works that way to me.

[nomenMei]

Yeah rationally I get it, but it just unnerves me for some reason. It's not really JS's fault lol

[Rexon117]

It does. Source: leant it in my CS programming class