select

1.00

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Description

Description:

Selects an element from an array, config entry from Config or substring from a string or a range from an array.

Groups:

Uncategorised

Syntax 1

Syntax:

array select index

Parameters:

array : Array

index: Number - Index 0 denotes the first element, 1 the second, etc. If index has decimal places it gets rounded down for fractions less than or equal .5, otherwise it gets rounded up.

Return Value:

Anything

Syntax 2

Syntax:

array select boolean

Parameters:

array : Array

boolean: Boolean - true => 1, false => 0

Return Value:

Anything

Syntax 3

Syntax:

config select index

Parameters:

config : Config

index: Number - Index 0 denotes the first element, 1 the second, etc. If index has decimal places it gets rounded down for fractions less than or equal .5, otherwise it gets rounded up.

Return Value:

Config

Syntax 4

Syntax:

string select [start, length]           (since ["Arma 3","Arma3",127,126674,"Development"])

Parameters:

string: String

[start, length]: Array

start: Number - String position to start selection from. 0 denotes the first character of the string, 1 the second, etc. If passed number has decimal places it gets rounded down for fractions less than or equal .5, otherwise it gets rounded up.

length (optional): Number - Number of the string characters to select. If "length" is omitted, selection will be made from "start" to the end of the string.

Return Value:

String

Syntax 5

Syntax:

array select [start, count]           (since ["Arma 3","Arma3",131,127272,"Development"])

Parameters:

array: Array

[start, count]: Array

start: Number - Array index to start selection from.

count: Number - Number of array elements to select. If the selected range exceeds source array boundaries, selection will be made up to the last element of the array.

Return Value:

Array

Syntax 6

Syntax:

array select expression           (since ["Arma 3","Arma3",155,133771,"Development"])

Parameters:

array: Array

expression: Code - expression that is expected to return Boolean or Nothing. If true is returned, the original array value of currently tested element _x will be added to the output array

Return Value:

Array - array of all elements from the original array that satisfied expression condition

Examples

Example 1:

[1,2,3,4] select 2; //result is 3 position player select 2; //result is Z coordinate of player position

Example 2:

["", currentWeapon player] select alive player; //if dead "" is selected

Example 3:

(configFile >> "cfgVehicles" >> typeOf vehicle player >> "Turrets") select 0 >> "gunnerAction";

Example 4:

hint str ("japa is the man!" select [8]); //the man! hint str ("japa is the man!" select [0,7]); //japa is

Example 5:

hint str ([1,2,3,4,5,6] select [1,4]); //[2,3,4,5]

Example 6:

_even = [1,2,3,4,5,6,7,8,9,0] select {_x%2 == 0}; // returns [2, 4, 6, 8, 0]

Additional Information

See also:

selectRandomsetresizereverseinfindtoArraytoStringforEachcountdeleteAtdeleteRangeappendsortparamparamssplitStringjoinStringpushBackpushBackUniqueapply

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

Notes

Posted on 3 March 2009

General Barron

When combined with the count command, this can be used to read all entries out of a config; even when you don't know exactly how many entries there will be. See the notes under count for more info.

Posted on 27 Sep, 2013

Killzone_Kid

Rounding of fractions with select is not the same as when you use round command: _roundThis = 0.5; hint str ([0,1] select _roundThis); //0 hint str round _roundThis; //1

Posted on 30 May, 2014 - 1549

ffur2007slx2_5

In ArmA3 ver 1.18, Boolean type supported. Which true defaulted as 1 and false as 0. [0,1] select (56 > 40) // 1 [0,1,2] select ((!isNil "v") && false) // 0

Posted on 14 juil, 2016

Pierre MGI

You can substract array from array using select: _array = [[1],[2],[3]]; _sub = [2]; _array - _sub // [[1],[2],[3]; _array select {!(_x isEqualTo _sub)} // [[1],[3]]; [[1],[2],[2],[2],[2],[3]] select {!(_x isEqualTo _sub)} // [[1],[3]];

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Posted on June 22, 2015 - 23:23 (UTC)

Killzone Kid

Usually when select tries to pick up element out of range, Arma throws "division by zero" error. However there are exceptions. Basically as long as index of element you are selecting is less then or equal to array size, you will get no error. [] select 0; //ok, result is nil [1,2,3] select 3; //ok, result is nil [1,2,3] select 4; //division by zero