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 an array contains a specified value. The includes() method returns false if the value is not found. The includes() method is case sensitive.

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 …

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 …

Jun 12, 2025 · 🧠 What is Array.prototype.includes()? The includes() method determines whether an array contains a specified element. It returns a boolean: true if the element is found, false …

Feb 5, 2025 · The includes() method in JavaScript is an essential tool for efficiently checking if an array contains a specific element. Its simple syntax and clear return value make it a highly …

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!

May 18, 2025 · The two JavaScript methods that can help you do that are includes() and indexOf(). Choosing the right method between the two can go a long way in keeping your code …

The meaning of INCLUDE is to take in or comprise as a part of a whole or group. How to use include in a sentence. Synonym Discussion of Include.

Mar 9, 2018 · The includes() method determines whether an array includes a certain element, returning true or false as appropriate. But in the way you are comparing two objects they are …