apply
Jump to navigation
Jump to search
Description
- Description:
- Applies the given code to each element of the given data structure and collects the results in an array.
- Groups:
- ArraysHashMap
Syntax
- Syntax:
- array apply code
- Parameters:
- array: Array - Array of Anything
- code: Code - Code to be executed on each element of the array. The current element value is stored in the magic variable _x.
- Return Value:
- Array - Resulting array
Alternative Syntax
- Syntax:
- hashmap apply code
- Parameters:
- hashmap: HashMap
- code: Code - Code to be executed on each key-value pair of the hashmap. The current key is stored in the magic variable _x, the corresponding value is stored in _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}; // ["0","1","2","3","4"]- Example 5:
_hashmap = createHashMapFromArray [["Key 1", "Value 1"], ["Key 2", "Value 2"]]; _array = _hashmap apply {_y + " Test"}; // ["Value 2 Test","Value 1 Test"]
Additional Information
- See also:
- set resize pushBack pushBackUnique select reverse count find in forEach deleteAt deleteRange append sort arrayIntersect
Notes
-
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() 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).