a hash b

1.82

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Description

Description:

Selects an element from an Array, same as select command for arrays, but has higher precedence.

ⓘ

# has higher precedence than all binary operators, but it has lower precedence than unary operators (see Example 3).

Groups:

Variables

Syntax

Syntax:

array # index

Parameters:

array: Array

index: Number

Return Value:

Anything

Examples

Example 1:

[1, 2, 3, 4] # 2; // result is 3

Example 2:

getPosASL player # 2; // result is Z component of player's position

Example 3:

// 'getPosASL' is unary; '#' and '+' are binary; precedence is: 'getPosASL' > '#' > '+' getPosASL player # 2 + 1; // equivalent to (getPosASL player # 2) + 1, not (getPosASL player)#(2+1)

Additional Information

See also:

select selectRandom selectRandomWeighted set resize reverse in find toArray toString forEach count deleteAt deleteRange append sort param params splitString joinString pushBack pushBackUnique apply

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

KC Grimes - c

Posted on Apr 25, 2018 - 00:51 (UTC)

Although not alternative syntax, the below notations work as expected:

["A", "B", "C"] # 1; // B ["A", "B", "C"] #1; // B ["A", "B", "C"]#1; // B ["A", "B", ["C", "D"]]#2#0; // C

7erra - c

Posted on May 03, 2019 - 15:41 (UTC)

Here is an example of what higher precedence means:

[1, 2, 3, 4] select 2 / 2; // divides 2 with 2, therefore selects the second element at index 1, result = 2 [1, 2, 3, 4] select (2 / 2); // same result with brackets [1, 2, 3, 4] # 2 / 2; // selects third element, then divides by 2 = 1.5 ([1, 2, 3, 4] # 2) / 2; // same result with brackets

This operator can not be used in conjunction with the #define preprocessor.

#define SEL_ERR [0,1,2]#0; // error #define SEL_NOERR [0,1,2] select 0; // works

Fett_li - c

Posted on Apr 02, 2021 - 16:18 (UTC)

Beware new-lines when using this operator. I suspect the preprocessor to fail. The following code will not compile without throwing an error:

[0] # 0;