Regular Expressions 101

^start of string

Character Class[+-]?

?matches at most one character from the set below:

+the literal + (43₁₀ / 53₈ / 2B₁₆)

-the literal - (45₁₀ / 55₈ / 2D₁₆)

\d+a digit, repeated at least once

Group 1([,.]\d+)?

?repeats the group contents below at most once:

Character Class[,.]

,the literal , (44₁₀ / 54₈ / 2C₁₆)

.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d+a digit, repeated at least once

$end of string, or before its final line terminator

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^[+-]?\d+([,.]\d+)?$

New

0.00
1,0.00
100.00
1,000.00
1,000,000,000.00
100,000.00