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Awesome Regex curates the best regular expression tools, tutorials, libraries, and other resources. It covers all major regex flavors, and currently includes especially deep coverage of regular expressions in JavaScript.
Regular expressions (regex or regexp) are a powerful and concise way to search, parse, and process text. They're built into many programming languages, text editors, IDEs, database engines, word processors, and other tools.
Many regexes found online are low quality. It's risky to use regexes you don't fully understand in code, since they might have false positives/negatives, be vulnerable to performance problems with certain target strings, or assume a different regex flavor.
A concise history of improvements to regular expressions in the JavaScript standard, with links to the TC39 proposals where features were developed and discussed.
