- 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
- Regular expression - Wikipedia
A regular expression (shortened as regex or regexp), [1] sometimes referred to as a rational expression, [2][3] is a sequence of characters that specifies a match pattern in text Usually such patterns are used by string-searching algorithms for "find" or "find and replace" operations on strings, or for input validation Regular expression techniques are developed in theoretical computer
- 正则表达式 – 教程 | 菜鸟教程
正则表达式（Regular Expression，简称 Regex 或 RegExp）是一种用来匹配字符串中字符组合的模式。 正则表达式是一种用于模式匹配和搜索文本的工具。
- RegExr: Learn, Build, Test RegEx
Menu RegExr 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
- 正则表达式_百度百科
正则表达式，又称规则表达式,（Regular Expression，在代码中常简写为regex、regexp或RE），它是一种文本模式，同时也是计算机科学的一个概念，其中包括普通字符（例如，a 到 z 之间的字母）和特殊字符（称为"元字符"）。
- Regex Learn - 逐步从零基础到高阶。
正则表达式，即 Regular Expressions，缩写为 Regex 或 Regexp，是在正则表达式语法框架内创建的字符串。 您可以用正则表达式轻松管理数据，执行查找、匹配或编辑等命令。
- Regular expressions - JavaScript | MDN - MDN Web Docs
Regular expressions are patterns used to match character combinations in strings In JavaScript, regular expressions are also objects These patterns are used with the exec() and test() methods of RegExp, and with the match(), matchAll(), replace(), replaceAll(), search(), and split() methods of String This chapter describes JavaScript regular expressions It provides a brief overview of each
- Regular-Expressions. info - Regex Tutorial, Examples and Reference . . .
At Regular-Expressions info you will find a wide range of in-depth information about a powerful search pattern language called regular expressions
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