foreach

Is there any command that works as php's foreach in actionscript?

I need to cycle through a non-consecutive number array to see if any of the values are greater than zero, but I don't know how to do this without wasting massive cycles checking the undefined parts of the array.

Example:

array[0] = 5;
array[3] = 8;
array[8] = 1;
array[9] = 0;
array[15] = 0;
array[19] = 20;

How would I check only the defined parts of the arrays to see if they're defined as greater than 0?

[/blur][/flash][/code]

Using a for..in loop.

for..in loops access the elements in reverse order of which they are assigned, the above will trace the order 7,3,5,0. They only evaluate that which has been assigned
Using any method on the array (reverse, sort, ect..) before the loop will taint the outcome of a for..in loop by assigning an "undefined" value to each null item in the array, which is then visible to the for..in loop causing it to evaluate the undefineds.

rockin and rollin, works fab =)