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.

Jan 16, 2026 · The includes () method in JavaScript is used to check whether an array contains a specific value. It returns a boolean result, making element checks simple and readable.

Here’s the syntax of the includes() method: The includes() method accepts two arguments: searchElement is the array element you want to search. fromIndex is a zero-based index at which …

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.

Oct 20, 2025 · In this article, we explore JavaScript’s .includes () method for searching arrays, including practical implementations in game development. You’ll learn coding techniques to enhance your own …

Nov 20, 2024 · In this guide, we'll explore the includes() method, covering its syntax, usage, best practices, and practical applications. The includes() method is designed to determine whether an …

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-based methods, …

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-sensitive search. …

Dec 24, 2020 · In the example above, the includes () method is used to search the string variable const str for the word “ includes ”. As the value of const str contains the search string (included as the …