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  1. regex101.comregex101: build, test, and debug regex

    Test String. Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.

  2. regexr.comRegExr: Learn, Build, & Test RegEx

    Regular expression tester with syntax highlighting, PHP / PCRE & JS Support, contextual help, cheat sheet, reference, and searchable community patterns.

  3. regex101.com › r › rsVgaPregex101: Regex tutorial

    Regular Expression. 1 match (8 steps, 1.0ms) (?i)\b word \b. word. 1:5. Regular expression tester with syntax highlighting, explanation, cheat sheet for PHP/PCRE, Python, GO, JavaScript, Java, C#/.NET, Rust.

  4. regexr101.comRegexr101 Building, Testing, and Debugging Regex

    Level up your regex skills with Regexr101. Effortlessly test, debug, and optimize your regular expressions using our syntax-highlighted tester.

  5. www.sitepoint.com › learn-regexLearn Regex: A Beginner’s Guide - SitePoint

    Jul 2, 2020 · This guide introduces the basics of regex syntax, including metacharacters, character sets, and flags, enabling you to apply regex solutions effectively in web development scenarios.

  6. www.rexegg.comRegex Tutorial—From Regex 101 to Advanced Regex

    Regular Expressions Tutorial. Comprehensive resource covering basic to advanced uses of regex. Includes regex cheat sheet, tools, books and tricks.

  7. regexlearn.com › learn › regex101Regex 101 - EN

    Regex is short for Regular Expression. It helps to match, find or manage text. Start by typing OK in the Regex field to proceed to the first step and access the more detailed description..

  8. www.rexegg.com › regex-quickstartRegex Cheat Sheet - Regex Tutorial—From Regex 101 to Advanced ...

    Quick-Start: Regex Cheat Sheet. The tables below are a reference to basic regex. While reading the rest of the site, when in doubt, you can always come back and look here. (It you want a bookmark, here's a direct link to the regex reference tables ). I encourage you to print the tables so you have a cheat sheet on your desk for quick reference.

  9. www.geeksforgeeks.org › python-regexPython RegEx - GeeksforGeeks

    Jul 19, 2022 · A RegEx is a powerful tool for matching text, based on a pre-defined pattern. It can detect the presence or absence of a text by matching it with a particular pattern, and also can split a pattern into one or more sub-patterns.

  10. www.geeksforgeeks.org › write-regular-expressionsRegex Tutorial – How to write Regular Expressions? -...

    Apr 12, 2024 · A regular expression (regex) is a sequence of characters that define a search pattern. Here’s how to write regular expressions: Start by understanding the special characters used in regex, such as “.”, “*”, “+”, “?”, and more. Choose a programming language or tool that supports regex, such as Python, Perl, or grep.