Regular expressions - JavaScript | MDN
Jul 21, 2025 · This chapter describes JavaScript regular expressions. It provides a brief overview of each syntax element. For a detailed explanation of each one's semantics, read the regular …
JavaScript RegExp Patterns - W3Schools
Well organized and easy to understand Web building tutorials with lots of examples of how to use HTML, CSS, JavaScript, SQL, Python, PHP, Bootstrap, Java, XML and more.
regex101: build, test, and debug regex
Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.
JavaScript RegExp (Regular Expression) - GeeksforGeeks
Aug 11, 2025 · This is the most common and simple way to create a regular expression in JavaScript. It’s especially useful when the pattern is static (doesn’t change dynamically).
JavaScript Regular Expressions
Summary: in this tutorial, you’ll learn about JavaScript regular expressions. After the tutorial, you’ll know how to use regular expressions effectively to search and replace strings.
Regular expressions - The Modern JavaScript Tutorial
Regular expressions Regular expressions is a powerful way of doing search and replace in strings.
Regular expression syntax cheat sheet - JavaScript | MDN
Dec 8, 2025 · This page provides an overall cheat sheet of all the capabilities of RegExp syntax by aggregating the content of the articles in the RegExp guide. If you need more information on a …