Node Reference for isNull

isNull - Node documentation

function isNull

import { isNull } from "node:util";



isNull(object: unknown): object is null

Deprecated

Since v4.0.0 - Use value === null instead.

Returns true if the given object is strictly null. Otherwise, returnsfalse.

const util = require('node:util');

util.isNull(0);
// Returns: false
util.isNull(undefined);
// Returns: false
util.isNull(null);
// Returns: true

Parameters



object: unknown

object is null