Regex Tester
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//g
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Cheat Sheet — click a token to append
.Any char (except newline)\dDigit [0-9]\DNon-digit\wWord char [a-zA-Z0-9_]\WNon-word char\sWhitespace\SNon-whitespace\bWord boundary^Start of string/line$End of string/line*0 or more+1 or more?0 or 1 (optional)*?Lazy 0 or more+?Lazy 1 or more{n,m}n to m times[abc]Char class[^abc]Negated class(a|b)a or b(?:...)Non-capturing group(?=...)Lookahead(?!...)Negative lookahead(?<=...)Lookbehind(?<!...)Neg. lookbehind(?<name>...)Named group\1Backreference #1$1Replace: group #1$&Replace: whole match