Regular Expressions 101

Pro

Group 1(\d+(?:\.\d+)?)

\d+a Unicode decimal digit, repeated at least once

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

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a Unicode decimal digit, repeated at least once

\s*a Unicode whitespace character, repeated any number of times

m²the literal text m² (case sensitive)

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

(\d+(?:\.\d+)?)\s*m²

New

Apartment 2 roomns, 40 m²
House 7 rooms, 183 m²
House 4 rooms, 93 m²
Apartment 12 rooms, 275 m²

Apartment 2 roomns, 40 m²
House 7 rooms, 183 m²
House 4 rooms, 93 m²
Apartment 12 rooms, 275 m²