isMapIterator - util/types - Node

isMapIterator - util/types - Node documentation

function isMapIterator

Usage in Deno

import { isMapIterator } from "node:util/types";



isMapIterator(object: unknown): boolean

Returns true if the value is an iterator returned for a built-in Map instance.

const map = new Map();
util.types.isMapIterator(map.keys());  // Returns true
util.types.isMapIterator(map.values());  // Returns true
util.types.isMapIterator(map.entries());  // Returns true
util.types.isMapIterator(map[Symbol.iterator]());  // Returns true

Parameters



object: unknown

Return Type

boolean