isSet

Checks if the given value is a Set.

This function tests whether the provided value is an instance of Set. It returns true if the value is a Set, and false otherwise.

This function can also serve as a type predicate in TypeScript, narrowing the type of the argument to Set.

Signature

function isSet(value: unknown): value is Set<any>;

Parameters

• value (unknown): The value to check if it is a Set.

Returns

(value is Set<any>): true if the value is a Set, false otherwise.

Examples

const value1 = new Set();
const value2 = new Map();
const value3 = new WeakSet();

console.log(isSet(value1)); // true
console.log(isSet(value2)); // false
console.log(isSet(value3)); // false