34 lines
1.0 KiB
JavaScript
34 lines
1.0 KiB
JavaScript
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import { isEqualsSameValueZero } from "../_internal/isEqualsSameValueZero.mjs";
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//#region src/map/hasValue.ts
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/**
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* Checks if a Map contains a specific value.
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*
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* This function iterates through all values in the Map and checks if any value
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* is equal to the search element using SameValueZero comparison (similar to
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* Array.prototype.includes). This means that NaN is considered equal to NaN.
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*
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* @template K - The type of keys in the Map.
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* @template V - The type of values in the Map.
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* @param {Map<K, V>} map - The Map to search.
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* @param {V} searchElement - The value to search for.
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* @returns {boolean} true if the Map contains the value, false otherwise.
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*
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* @example
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* const map = new Map([
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* ['a', 1],
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* ['b', 2],
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* ['c', 3]
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* ]);
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* const result = hasValue(map, 2);
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* // result will be: true
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*
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* const result2 = hasValue(map, 5);
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* // result2 will be: false
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*/
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function hasValue(map, searchElement) {
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for (const value of map.values()) if (isEqualsSameValueZero(value, searchElement)) return true;
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return false;
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}
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//#endregion
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export { hasValue };
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