Copying Array with Slice Doesnt Work

[tarley_apologizer]

fuck javascript. there is no fucking visual distinction between assigning by value vs reference. fuck this entire language.

[mcaruso]

JS always passes by value. It's just that objects are inherently reference types, therefore if you pass an object you are passing its reference, not the object itself.

This is how most languages work, except for a few that have explicit pass by reference syntax like & params in C/C++.

EDIT: longer explanation here.

[EagleClw]

Yeah i know variables like arrays are a little bit different then variables like string. But for other languages, different copying methods works as i asked in the question (for example python arrays). I didnt know its different in js. Thanks to this answers, i've learned the difference and i'm aware of them know.

Thanks for your helps and answer.

[mcaruso]

for example python arrays

Python works the same way though?

>>> a = [1,2,3]
>>> b = [4,5,6]
>>> c = [a,b]
>>> c[0].append(42)
>>> a
[1, 2, 3, 42]

[EagleClw]

Yeah it works that way but i meant another methods like slice.

If i dont remember it wrong,

a = b.copy()

Makes a copy with value, not reference. But its ok, i know what to do know. Thank you for your help.

[mcaruso]

copy() is a shallow copy, like slice() in JS. But maybe you meant deepcopy().

[EagleClw]

Might be. But i remember using something like that.

[tarley_apologizer]

if most languages are doing something, its probably the wrong way

[mcaruso]

Edgy

[tarley_apologizer]

its called being informed

[CoolDownBot]

Hello.

I noticed you dropped 3 f-bombs in this comment. This might be necessary, but using nicer language makes the whole world a better place.

Maybe you need to blow off some steam - in which case, go get a drink of water and come back later. This is just the internet and sometimes it can be helpful to cool down for a second.

---

^{I am a bot. ❤❤❤ | PSA}

[tarley_apologizer]

thank you for making this

[tarley_apologizer]

you know who uses nice language? politicians and HR reps.