Function isWeakSet

  • 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.

    Parameters

    • value: unknown

      The value to test if it is a WeakSet.

    Returns value is WeakSet<WeakKey>

    true if the value is a WeakSet, false otherwise.

    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