Skip to content

The Object is() method

Find out all about the JavaScript is() method of the Object object

THE AHA STACK MASTERCLASS

Now open with 50% off launch discount!

This method was introduced in ES2015. It aims to help comparing values.

Usage:

Object.is(a, b)

The result is always false unless:

0 and -0 are different values in JavaScript, so pay attention in this special case (convert all to +0 using the + unary operator before comparing, for example).


→ Get my JavaScript Beginner's Handbook

I wrote 20 books to help you become a better developer:

  • Astro Handbook
  • HTML Handbook
  • Next.js Pages Router Handbook
  • Alpine.js Handbook
  • HTMX Handbook
  • TypeScript Handbook
  • React Handbook
  • SQL Handbook
  • Git Cheat Sheet
  • Laravel Handbook
  • Express Handbook
  • Swift Handbook
  • Go Handbook
  • PHP Handbook
  • Python Handbook
  • Linux Commands Handbook
  • C Handbook
  • JavaScript Handbook
  • CSS Handbook
  • Node.js Handbook
...download them all now!

Related posts that talk about js: