Description
Searches for an element within array for which the code evaluates to true. Returns the zero-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.
Note
findIf terminates as soon as it finds an element that fulfills the condition, thus it is more efficient than count in scenarios where a check for presence / absence of at least one element should be done (See #Example 2).
Syntax
array findIf code
Parameters:
array: Array - array to search incode: Code - code defining an element to find, processed element can be referenced within the code as _x
Returns: Number - zero-based position of the first array element for which the code evaluate to true, -1 if not found
Examples
Example 1
private _firstDead = [unit1, unit2, unit3] findIf { not alive _x }; // return index of the 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 a living unit
waitUntil { { alive _x } count [unit1, unit2, unit3] == 0 }; // slow, always goes through all array elements