Regular Expressions 101

Pro

1st Alternative^\d+[.,]?\d*$

^start of line

\d+a digit, repeated at least once

Character Class[.,]?

?matches at most one character from the set below:

.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d*a digit, repeated any number of times

$end of line

2nd Alternative^[.,]\d*$

^start of line

Character Class[.,]

.the literal . (46₁₀ / 56₈ / 2E₁₆)

,the literal , (44₁₀ / 54₈ / 2C₁₆)

\d*a digit, repeated any number of times

$end of line

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*$|^[.,]\d*$

New


111.
11.
11,
1111,
.123
,.123
11.,
,123.
11.,
,.
,
.1
asdf
,12312
.12,
1231.
1231,.