findIf

1.82

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Description

Description:

Searches for an element within array for which the code evaluates to true. Returns the 0 based index on success or -1 if not found. Code on the right side of the command is evaluated for each element of the array, processed element can be referenced in code as _x.

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findIf terminates as soon as it finds an element that fulfills the condition, thus it is more efficient then count in scenarios where you need to check for presence / absence of at least one element that evaluates to true.

Groups:

Uncategorised

Syntax

Syntax:

array findIf code

Parameters:

array: Array - array to search in

code: Code - code defining an element to find, processed element can be referenced within the code as _x

Return Value:

Number - 0 based position of the first array element for which the code evaluate to true, -1 if not found

Examples

Example 1:

[unit1,unit2,unit3] findIf {!alive _x}; //return index of first dead unit

Example 2:

//two ways how to 'wait for all units to be dead': waitUntil { [unit1,unit2,unit3] findIf {alive _x} == -1 }; //fast, terminates as soon as it finds alive unit waitUntil { {alive _x} count [unit1,unit2,unit3] == 0 }; //slow, always goes through all array elements

Additional Information

See also:

find count

Notes

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