forEach

1.00

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Description

Description:

Executes the given command(s) on every item of an array.
The array items are represented by the magic variable _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.

Groups:

Uncategorised

Syntax

Syntax:

command forEach array

Parameters:

command: String (only in Operation Flashpoint), Code (since Arma)

array: Array

Return Value:

Nothing

Examples

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;

Additional Information

See also:

setresizepushBackreverseselectinfindtoArraytoStringcount Control Structures

Notes

Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord.
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Notes

Posted on July 20, 2010

Kronzky

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].

Bottom Section

Posted on August 29, 2014 - 22:23 (UTC)

Fett Li

It's not true that forEach has no return value. The last passed value of the forEach-loop will be the return value. For example:

_var = {_x} forEach [1,2,3];

_var will be 3.

You also can use if BOOL exitWith CODE to assign any return value.