es-toolkit
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A state-of-the-art, high-performance JavaScript utility library with a small bundle size and strong type annotations.
27 lines (26 loc) • 808 B
JavaScript
//#region src/predicate/isWeakSet.ts
/**
* Checks if the given value is a `WeakSet`.
*
* This function tests whether the provided value is an instance of `WeakSet`.
* It returns `true` if the value is a `WeakSet`, and `false` otherwise.
*
* This function can also serve as a type predicate in TypeScript, narrowing the type of the argument to `WeakSet`.
*
* @param value - The value to test if it is a `WeakSet`.
* @returns true if the value is a `WeakSet`, false otherwise.
*
* @example
* const value1 = new WeakSet();
* const value2 = new Map();
* const value3 = new Set();
*
* console.log(isWeakSet(value1)); // true
* console.log(isWeakSet(value2)); // false
* console.log(isWeakSet(value3)); // false
*/
function isWeakSet(value) {
return value instanceof WeakSet;
}
//#endregion
export { isWeakSet };