Push and Add in array do same thing?

Unity Engine
1

The docs say that push and add do the same thing on the array function

http://unity3d.com/support/documentation/ScriptReference/Array.html

Is that a typo, or is it correct? If it is, why are there two functions?

2

It’s correct. They are the same so you can use whichever you’re more used to.

–Eric

3

The difference between the two is that Push() returns the arrays new length, and Add() returns void.

4

Where would you use functionality like that?

I can’t think of anywhere I’d want the length value returned on a push command.

5

How about this:

// Adds numbers 1 - 10 to the array
var arr = new Array();
var i = 1;

while (arr.Push(i++) < 10);

Not a great example perhaps, but the point is that some programmers might find Push()'s return value useful. It certainly doesn’t hurt to have one.