JavaScript String includes () Method - W3Schools
Description The includes() method returns true if a string contains a specified string. Otherwise it returns false. The includes() …
String.prototype.includes () - JavaScript | MDN - MDN Web Docs
Jul 10, 2025 · The includes() method of String values performs a case-sensitive search to determine whether a given string may be …
How to check whether a string contains a substring in JavaScript ...
Apr 3, 2019 · Usually I would expect a String.contains() method, but there doesn't seem to be one. What is a reasonable way to …
JavaScript String includes () Method - GeeksforGeeks
Jun 1, 2026 · The includes () method is used to check whether a string contains a specific value. It returns a boolean result based on …
JavaScript String includes () Method
In this tutorial, you will learn how to use the JavaScript String includes() method to check if a string contains a substring.
JavaScript String Contains – How to use JS .includes ()
Nov 5, 2021 · In JavaScript you can use the .includes() method to see if one string is found in another. But how does it work exactly? …
JavaScript - How To Check Whether a String Contains a Substring ...
Jul 23, 2025 · Here are the different methods to check whether a string contains a substring in JavaScript. 1. Using includes () …
String - JavaScript | MDN - MDN Web Docs
May 22, 2026 · Strings are useful for holding data that can be represented in text form. Some of the most-used operations on strings …
String.prototype.includes () - MDN Web Docs
This version of MooTools checks whether String.prototype.contains () exists and, if it doesn't, MooTools adds its own function. With …
Javascript String includes () - Programiz
In this tutorial, we will learn about the JavaScript String includes () method with the help of examples. In this article, you will learn …