regex | regex101: build, test, and debug regex

Keyword	CPC	PCC	Volume	Score	Length of keyword
regex	0.19	0.9	868	41	5

Keyword	CPC	PCC	Volume	Score
regex	1.59	0.4	1508	13
regexr	1.45	0.9	9117	14
regex cheat sheet	1.61	0.7	5855	100
regex101	1.04	0.1	5338	28
regex online	1.18	0.1	9581	43
regex poe	1.87	0.1	570	1
regex python	0.67	0.3	500	12
regex generator	0.99	0.9	5131	82
regex tester	1.87	0.5	4625	13
regexp	0.41	0.3	6577	36
regex builder	1.5	0.9	8233	14
regex.match	1.58	0.8	7937	26
regex calculator	0.65	0.4	5551	86
regex checker	1.85	1	8471	59
regex pattern	0.47	0.2	8573	57
regex replace	1.24	0.8	1201	3
regex javascript	2	0.2	9815	28
regex validator	0.46	0.2	2493	6
regex expressions	1.36	0.5	1583	96
regex tutorial	1.34	0.3	1228	51
regex tester online	1.1	0.8	3034	4
regexone	1.5	0.8	8045	4
regex js	1.46	0.8	2934	7
regex storm	1.77	0.6	9474	80
regex sql	0.85	0.6	9629	40

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regex101: build, test, and debug regex
regex101.com

https://regex101.com/

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

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RegExr: Learn, Build, & Test RegEx
regexr.com

https://regexr.com/

WEBSupports 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. Full RegEx Reference with help & examples. Undo & Redo with {{getCtrlKey()}}-Z / Y in editors.

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Regular expression syntax cheat sheet - JavaScript | MDN
mozilla.org

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions/Cheatsheet

WEBOct 4, 2023 · 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 specific topic, please follow the link on the corresponding heading to access the full article or head to the guide.

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Regular expression - Wikipedia
wikipedia.org

https://en.wikipedia.org/wiki/Regular_expression

WEBRegular expressions describe regular languages in formal language theory. They have the same expressive power as regular grammars. Formal definition. Regular expressions consist of constants, which denote sets of strings, and operator symbols, which denote operations over these sets.

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Learn Regex: A Beginner's Guide — SitePoint
sitepoint.com

https://www.sitepoint.com/learn-regex/

WEBJul 2, 2020 · Regex, or regular expressions, are special sequences used to find or match patterns in strings. These sequences use metacharacters and other syntax to represent sets, ranges, or specific...

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Regex Tutorial - A Cheatsheet with Examples - Regextutorial.org
regextutorial.org

https://regextutorial.org/

WEBRegular expressions or commonly called as Regex or Regexp is technically a string (a combination of alphabets, numbers and special characters) of text which helps in extracting information from text by matching, searching and sorting.

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Regular expressions - JavaScript | MDN - MDN Web Docs
mozilla.org

https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Regular_Expressions

WEBJan 2, 2024 · 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.

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A Practical Guide to Regular Expressions – Learn RegEx with …
freecodecamp.org

https://www.freecodecamp.org/news/practical-regex-guide-with-real-life-examples/

WEBAug 1, 2023 · Regular expressions, also known as regex, work by defining patterns that you can use to search for certain characters or words inside strings. Once you define the pattern you want to use, you can make edits, delete certain characters or words, substitute one thing for another, extract relevant information from a file or any string that contains ...

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Regular-Expressions.info - Regex Tutorial, Examples and …
regular-expressions.info

https://www.regular-expressions.info/

WEBMar 15, 2024 · A regular expression (regex or regexp for short) is a special text string for describing a search pattern. You can think of regular expressions as wildcards on steroids. You are probably familiar with wildcard notations such as *.txt to find all text files in a file manager. The regex equivalent is ^.*\.txt$.

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Regex tutorial — A quick cheatsheet by examples - Medium
medium.com

https://medium.com/factory-mind/regex-tutorial-a-simple-cheatsheet-by-examples-649dc1c3f285

WEBJun 22, 2017 · Regular expressions (regex or regexp) are extremely useful in extracting information from any text by searching for one or more matches of a specific search pattern (i.e. a specific sequence of...

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