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Regex Reference — Character Classes, Groups, Lookaheads, Flags, and Real-World Patterns






Regex Reference — Character Classes, Groups, Lookaheads, Flags, and Real-World Patterns


🔎 Regex Reference

Character classes, quantifiers, groups, lookaheads, flags, and copy-ready real-world patterns. Works across JavaScript, Python, grep, sed, and most regex engines.

JavaScriptPythongrep -E / -Psed -EGoPCRE



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