Jul 20, 2025 · The includes () method of Array instances determines whether an array includes a certain value among its entries, returning true or false as appropriate.

Description The includes() method returns true if a string contains a specified string. Otherwise it returns false. The includes() method is case sensitive.

This tutorial shows you how to use the JavaScript Array includes () method to check if an array contains a specified element.

Jul 11, 2025 · The includes () method in JavaScript returns true if an array contains a specified value, and false if the value is not found. This method simplifies checking for the presence of …

The JavaScript includes method helps you quickly determine if a string contains a substring or if an array contains a value. It’s an essential tool in modern JavaScript—cleaner than index …

Jun 12, 2025 · Just another casual day discussing code with my colleagues when one of them brought up something surprisingly interesting — the good old includes() method in JavaScript …

Mar 23, 2025 · Learn how to use JavaScript's includes () method with arrays and strings to check for specific values or substrings. Examples and insights included!

Feb 5, 2025 · What is the includes () Method? The includes() method in JavaScript is a powerful and convenient tool for determining whether an array contains a specific element. It returns a …

Apr 4, 2025 · The includes method determines whether an array or string contains a specified element or substring. It returns true if found, false otherwise. This method performs a case …

In this tutorial, you will learn about the JavaScript Array include () method with the help of examples. The includes () method checks if an array contains a specified element or not.