regex | regex101: build, test, and debug regex

Keyword	CPC	PCC	Volume	Score	Length of keyword
regex	0.5	0.2	564	83	5

Keyword	CPC	PCC	Volume	Score
regex	1.86	1	7917	34
regexr	0.43	0.5	8281	70
regex cheat sheet	1.68	0.9	772	83
regex101	1.65	0.6	1622	13
regex online	0.87	0.1	7477	48
regex poe	1.99	0.1	8933	87
regex python	1.8	0.4	4657	98
regex generator	1.25	0.7	7285	69
regex tester	1.53	0.4	7909	94
regexp	1.32	0.6	5809	57
regex builder	0.65	1	488	42
regex.match	1.64	0.5	3267	60
regex calculator	1.42	0.7	4885	67
regex checker	0.95	0.9	5961	99
regex pattern	1.14	0.7	7230	98
regex replace	1.52	0.9	7216	28
regex javascript	0.24	0.4	4143	67
regex validator	1.82	0.2	1751	8
regex expressions	0.95	0.4	1429	69
regex tutorial	0.45	0.1	1529	76
regex tester online	0.13	0.9	507	90
regexone	0.26	0.9	7631	55
regex js	1.94	0.6	7619	59
regex storm	0.47	0.4	9815	74
regex sql	0.94	0.6	6780	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

WEBA regular expression (shortened as regex or regexp ), [1] sometimes referred to as 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.

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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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Regex Tutorial - How to write Regular Expressions?
geeksforgeeks.org

https://www.geeksforgeeks.org/write-regular-expressions/

WEBApr 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.

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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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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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A Practical Guide to Regular Expressions – Learn RegEx with Real …
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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