Regex \d — Match a Digit

\d matches a single digit [0-9]. In Unicode mode (JS /u or Python re.UNICODE) it expands to all Unicode Nd (Decimal_Number) characters. Example: /\d/ on "abc123" matches 1, 2, 3.

Key facts

Frequently asked questions

What does \d match?

A single digit, [0-9] in ASCII mode.

Does \d match Unicode digits?

Yes, in Unicode mode it covers all Nd characters.

Related pages

• HTTP 200 OK
• HTTP 301 Moved Permanently
• HTTP 401 Unauthorized
• HTTP 403 Forbidden
• HTTP 404 Not Found
• HTTP 429 Too Many Requests
• HTTP 500 Internal Server Error
• HTTP 502 Bad Gateway

Regex \d — Digit is part of DevRef Hub on GOAT Lab — a free reference you can use without signing up, and it works offline. Open the tool above for any custom value.

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