getOrDefault: Difference between revisions

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|seealso= [[HashMap]] [[get]]
|seealso= [[getOrDefaultCall]] [[HashMap]] [[get]]
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Revision as of 12:59, 8 September 2022

Hover & click on the images for description

Description

Description:
Retrieves a value out of a HashMap after looking it up by its key. When the HashMap doesn't contain the key, the default value is returned
Groups:
HashMap

Syntax

Syntax:
hashMap getOrDefault [key, defaultValue, setDefault]
Parameters:
hashMap: HashMap
key: HashMapKey - Case sensitive key
defaultValue: Anything - (Optional, default nil)
since Arma 3 logo black.png2.04
setDefault: Boolean - (Optional, default false) if set to true and value does not exist in provided hash map, defaultValue will be added to the hash map
Return Value:
Anything

Examples

Example 1:
private _myValue = _myHashMap getOrDefault ["a", "Not Found!"];
Example 2:
private _myValue = _hashMap getOrDefault ["a", "Not Found!", true]; // will add default value to the hash map if it does not exist
Example 3:
private _array = _hashmap getOrDefault [_key, [], true]; // a new array will be created if it doesn't exist _array pushBack _item; // _item will be added to the array (the one in the hashmap is updated by reference)

Additional Information

See also:
getOrDefaultCall HashMap get

Notes

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