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| 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 | 5x 1x 5x 5x 3x 2x | /**
* Override a {@link Map} entry if an entry with the same key exists.
*
* An optional `oldValue` can be provided, which has to match the current
* value inside the {@link Map}.
*
* @mutation
*
* @example
* Override value if key exists
* ```ts
* const map = new Map([[1, 2]]);
* replace(map)(1, 3);
* console.log(map); // Map([[1, 3]])
* ```
*
* @example
* Override value if current value matches old value
* ```ts
* const map = new Map([[1, 2]]);
* replace(map)(1, 2, 3);
* console.log(map); // Map([[1, 3]])
* ```
*
* @typeParam K - the {@link Map} key type
* @typeParam V - the {@link Map} value type
* @param map - the {@link Map} to set the entry
*/
export const replace: {
<K, V>(map: Map<K, V>): {
(key: K, value: V): void;
(key: K, oldValue: V, newValue: V): void;
};
} =
(map) =>
(key, value, value2: typeof value = value): void => {
if ((value !== value2 && value !== map.get(key)) || !map.has(key)) {
return;
}
map.set(key, value2);
};
|