How to check if a JavaScript array contains a specific value
Given a JavaScript array, how do you check if it contains a specific item?
AI workshop
join cohort #1
Use the includes() method on the array instance.
For example:
['red', 'green'].includes('red') //true ✅
['red', 'green'].includes('yellow') //false ❌
→ 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