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Bookmark or Share- Regular expressions - JavaScript | MDN - MDN Web DocsIf you use exec() or match() and if the match succeeds, these methods return an array and update properties of the associated regular expression object and also of the predefined regular expression object, RegExp. If the match fails, the exec() method returns null (which coerces to false).
- RegExr: Learn, Build, & Test RegExRegExr is an online tool to learn, build, & test Regular Expressions (RegEx / RegExp). Supports JavaScript & PHP/PCRE RegEx. Results update in real-time as you type. Roll over a match or expression for details. Validate patterns with suites of Tests. Save & share expressions with others. Use Tools to explore your results.
- Regular expression syntax cheat sheet - JavaScript | MDN - MDN Web DocsThis 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 specific topic, please follow the link on the corresponding heading to access the full article or head to the guide.
- regex101: build, test, and debug regexRegular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.
- RegExp - JavaScript | MDN - MDN Web DocsThe RegExp object is used for matching text with a pattern. For an introduction to regular expressions, read the Regular expressions chapter in the JavaScript guide. For detailed information of regular expression syntax, read the regular expression reference. There are two ways to create a RegExp object: a literal notation and a constructor.
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