Regular Expressions 101

1st Alternative^\d{1,2}\.\d{1,2}$

^start of line

\d{1,2}a digit, repeated between 1 and 2 times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d{1,2}a digit, repeated between 1 and 2 times

$end of line

2nd Alternative^\d{1,2}$

^start of line

\d{1,2}a digit, repeated between 1 and 2 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.

Search reference

Regular Expression

^\d{1,2}\.\d{1,2}$|^\d{1,2}$

New

0.01
99.99
01.01
0.0
0.10
99.99
12
1
50
01q75
123447 
fhfgh
fgh54654fg4h
5346545454654564654654654
123


?[0-9]([1-9][0-9](.[0-9])?|.[0-9][1-9][0-9]*)