apply: Difference between revisions

Revision as of 15:28, 7 April 2019

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Description:: Applies given code to each element of the array and returns resulting array. The value of the current array element, to which the code will be applied, is stored in variable _x.
Groups:: Uncategorised

Syntax:: array apply code
Parameters:: array: Array - array of Anything
: code: Code - code to be executed on each element of the array. Current element value is stored in variable _x
Return Value:: Array - resulting array

Example 1:: _arr = [1,2,3,4,5,6,7,8,9,0] apply {[1,0] select (_x % 2 == 0)}; //[1,0,1,0,1,0,1,0,1,0]
Example 2:: _arr = [1,2,3,4,5,6,7,8,9,0] apply {_x ^ _x}; //[1,4,27,256,3125,46656,823543,16777216,387420480,1]
Example 3:: _arr1 = []; _arr1 resize 20; _arr2 = _arr1 apply {0}; //[0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0,0]

See also:: set resize pushBack pushBackUnique select reverse count find in forEach deleteAt deleteRange append sort arrayIntersect BIS_fnc_arrayPushStack BIS_fnc_arrayPush

: Report bugs on the Feedback Tracker and/or discuss them on the Arma Discord or on the Forums.
Only post proven facts here! Add Note

Posted on February 18, 2016 - 11:03 (UTC)
Fusselwurm: (to anyone else wondering, I took a minute to get it): This is Array.map() is JavaScript

Posted on February 11, 2018 - 23:02 (UTC)
Lou Montana: if performance really is an issue, apply seems to be (very) slightly faster than forEach (by more or less one percent, 0.7-1.5% in my tests to be precise).

@@ Line 13: / Line 13: @@
 | array '''apply''' code|SYNTAX=
-|p1= array: [[Array]] - array of [[Anything]] |= Parameter 1
+|p1= array: [[Array]] - array of [[Anything]] |PARAMETER1=
-|p2= code: [[Code]] - code to be executed on each element of the array. Current element value is stored in variable [[_x]]|= Parameter 2
+|p2= code: [[Code]] - code to be executed on each element of the array. Current element value is stored in variable [[_x]]|PARAMETER2=
 | [[Array]] - resulting array|RETURNVALUE=
 ____________________________________________________________________________________________
-|x1= <code>_arr = [1,2,3,4,5,6,7,8,9,0] [[apply]] {[1,0] [[select]] (_x % 2 == 0)}; //[1,0,1,0,1,0,1,0,1,0]</code> |= Example 1
+|x1= <code>_arr = [1,2,3,4,5,6,7,8,9,0] [[apply]] {[1,0] [[select]] (_x % 2 == 0)}; //[1,0,1,0,1,0,1,0,1,0]</code> |EXAMPLE1=
-|x2= <code>_arr = [1,2,3,4,5,6,7,8,9,0] [[apply]] {_x ^ _x}; //[1,4,27,256,3125,46656,823543,16777216,387420480,1]</code> |= Example 2
+|x2= <code>_arr = [1,2,3,4,5,6,7,8,9,0] [[apply]] {_x ^ _x}; //[1,4,27,256,3125,46656,823543,16777216,387420480,1]</code> |EXAMPLE2=
 |x3= <code>_arr1 = [];
 _arr1 [[resize]] 20;