forEach

From Bohemia Interactive Community

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Description:

Executes the given command(s) on every item of an array.

The array items are represented by _x. The array indices are represented by _forEachIndex.

In ArmA2 & VBS2, the variable _x is always local to the forEach block so it is safe to nest them.

Example 1:

{_x setdammage 1} forEach units group player

Example 2:

This command can also easily be used to execute a single command multiple times without respect to the array items.

{player addMagazine "M16"} forEach [1,2,3,4]

Example 3:

You can also use multiple commands in the same block.

{_x setCaptive true; removeAllWeapons _x; doStop _x;} forEach units group this

Only post proven facts here. Use the talk page or the forums for discussions.

Posted on July 20, 2010

If arrays are used in forEach loops, _x uses them by reference, so any changes to _x will be applied to the original:

_arr1 = [1,2,3];
_arr2 = [6,7,8];
{_x set [1,"x"]} forEach [_arr1,_arr2];

will change _arr1 to [1,"x",3], and _arr2 to [6,"x",8].