Regular Expressions 101

Pro

Non-Capturing Group(?:\d{4,}|\d{1,3}(?:,\d{3})*)

1st Alternative\d{4,}

\d{4,}a digit, repeated at least 4 times

2nd Alternative\d{1,3}(?:,\d{3})*

\d{1,3}a digit, repeated between 1 and 3 times

Non-Capturing Group(?:,\d{3})*

*repeats the group contents below any number of times:

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d{3}a digit, repeated exactly 3 times

Non-Capturing Group(?:\.\d+)?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

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

Detailed match information will be displayed here automatically.

25 tokens

Regular Expression

(?:\d{4,}|\d{1,3}(?:,\d{3})*)(?:\.\d+)?

New

the number is 1000 today
the number is 1000.00 today
the number is 1000.142 today
the number is 1000.30 today
the number is 1000.200 today
the number is 1,000 today
the number is 1,000.00 today
the number is 1,000.142 today
the number is 1,000.30 today
the number is 1,000.200 today