Regex Cheat Sheet
\d— Digit (0–9)\w— Word char (a-z, A-Z, 0-9, _)\s— Whitespace.— Any character (except newline)^/$— Start / end of line*— 0 or more+— 1 or more?— 0 or 1 (or non-greedy){n,m}— Between n and m occurrences[abc]— Any of a, b, c(group)— Capture group(?:group)— Non-capturing group|— OR