Re: Pop/shift/delete on array

[monarch]

let's say you have an array that looks like this

  my @vals = ( 'cat', 'dog', 'mouse' );

Let's push onto this array:

  push( @vals, 'tiger' );
  print( join(',',@vals ) );

outputs cat,dog,mouse,tiger.

Let's pop from this array:

  print( pop( @vals ) );

outputs tiger.

Let's shift from this array:

  print( shift( @vals ) );

outputs cat.

Note that both shift and pop remove the value from the array that you obtained:

  print( join(',',@vals ) );

prints dog,mouse.

Finally delete isn't an array function, it's used for deleting a hash element... update: whoops Limbic~Region has pointed out I was wrong about the delete function.. read his comments below.

[Limbic~Region]

monarch,
Finally delete isn't an array function, it's used for deleting a hash element.

While I have yet to see a good use for using delete on an array, this is misinformation. The docs for delete clearly indicate it can be used for arrays and array slices though it behaves differently then if it had been performed on a hash. It is designed to work with exists on array elements which I find just as icky. If the element isn't at the either end, I prefer to use splice to get rid of it even though I hear the cost of splicing an array is proportional to the size of the array at time of splicing.