Regex Cheatsheet - Regular Expression Quick Reference
Quick reference for regular expression patterns. Character classes, quantifiers, anchors, and common patterns.
Unicode Flag u
FlagEnable full Unicode matching support
Pattern
/pattern/uSyntax
Explanation
u flag enables Unicode code point matching and Unicode property escapes \p{...}
Examples
/\u{1F600}/uMatch 😀 emoji
Matches: 😀
/\p{Script=Han}/uMatch Chinese characters
Matches: 中文
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