getOrDefault: Difference between revisions
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Lou Montana (talk | contribs) m (Text replacement - " \|([ps][0-9]+) *= " to " |$1= ") |
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|descr= 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 | |descr= 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 | ||
|s1= hashMap [[getOrDefault]] [key, defaultValue] | |s1= hashMap [[getOrDefault]] [key, defaultValue, setDefault] | ||
|p1= hashMap : [[HashMap]] | |p1= hashMap : [[HashMap]] | ||
| Line 24: | Line 24: | ||
|x2= <code>[[private]] _myValue = _hashMap [[getOrDefault]] ["a", "Not Found!", [[true]]]; {{cc|Will add default value to the hash map if it does not exist}}</code> | |x2= <code>[[private]] _myValue = _hashMap [[getOrDefault]] ["a", "Not Found!", [[true]]]; {{cc|Will add default value to the hash map if it does not exist}}</code> | ||
|x3= <code>[[private]] _array = _hashmap [[getOrDefault]] [_key, [], [[true]]]; {{cc|a new array will be created if it doesn't exist}} | |||
_array [[pushBack]] _item; {{cc|_item will be added to the array (the one in the hashmap is updated by reference)}}</code> | |||
|seealso= [[HashMap]] [[get]] | |seealso= [[HashMap]] [[get]] | ||
}} | }} | ||
Revision as of 21:12, 13 February 2022
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
2.04 - 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
Notes
-
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