apply

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Description

Description:
Description needed
Groups:
Arrays

Syntax

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

Alternative Syntax

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

Examples

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]
Example 4:
[0,1,2,3,4] apply {str _x}; // Returns ["0","1","2","3","4"]
Example 5:
_hashmap = createHashMapFromArray [["key", "value"]]; _array = _hashmap apply {_y}; //["value"]

Additional Information

See also:
setresizepushBackpushBackUniqueselectreversecountfindinforEachdeleteAtdeleteRangeappendsortarrayIntersect

Notes

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