Regular Expressions 101

Explanation

Pro

\ban ASCII word boundary

\d{6}a digit, repeated exactly 6 times

Non-Capturing Group(?:\d{4})?

?repeats the group contents below at most once:

\d{4}a digit, repeated exactly 4 times

\ban ASCII word boundary

Negative Lookahead(?!\/)

\/the literal / (47₁₀ / 57₈ / 2F₁₆)

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

m modifier: multiline. Causes ^ and $ to match the start and end of each line, not only the start and end of the string

Match Information

Detailed match information will be displayed here automatically.

Quick Reference

25 tokens

Regular Expression

\b\d{6}(?:\d{4})?\b(?!\/)

New

1. My Zip-code is 101010. Please update. -> 101010
2. 9090909090 is my mobile number -> 9090909090
3. 00/9090909090/000000/ -> should not find any number
4. 9090909090 -> 9090909090