array.reverse()

[cbk1994]

or array.flip()

It reverses (or flips) the order of an array. I don't think I need to illustrate this, but I will anyway.

a, d, s, h, r
array.reverse()
r, h, s, d, a

It would also be great to have

array.reverse(start index, end index)

a, d, s, h, r
array.reverse(1, 3)
a, h, s, d, r

[DustyPorViva]

Could always get Skyld to add something like:

PHP Code:

function flip(arr) {
  temp.fliparr = new[arr.size()];
  for (temp.i=0;i<arr.size();i++) {
    fliparr[arr.size()-1-i] = arr[i];
  }
  return fliparr;
} 


To the public functions... however, I agree.

[Angel_Light]

Not trying to be negative, seriously. But can anyone show me a use of this?

[DustyPorViva]

I'm sure there are a few moments in time someone would like to flip a list of whatever.

[fowlplay4]

Well it can be a shortcut for, for each loops.. like:

PHP Code:


temp.array = {1, 2, 3, 4, 5};

for (temp.i = (array.size()-1); i > 0); temp.i--) {
  echo(array[i]);
}

for (temp.val: array.reverse()) {
  echo(val);
} 


But other than that this usually doesn't pop up much.

[Pelikano]

You should be able to change the "keys" of arrays, just like in PHP.

Now, that would be something...

[salesman]

Originally Posted by Angel_Light

Not trying to be negative, seriously. But can anyone show me a use of this?

My most recent encounter with something like this was looping through an array of nodes for a pathfinding script...this would've made things much easier.

[Angel_Light]

Alright, thanks you guys. I was literally drawing a blank of when I would ever use it, but the pathfinding thing made sense.

[Chompy]

I see no point for it to be added into the engine ;o

[Gambet]

Originally Posted by Chompy

I see no point for it to be added into the engine ;o

Agreed.


With most languages you would have to do something like what Jer posted, and it's not like it's difficult to reverse arrays anyways. If Stefan is willing to update it to the engine then by all means go ahead, I just don't think it's one of those things that really needs to be there.