Regular Expressions 101

^start of line

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

Group 1(\.\d{1,5})?

?repeats the group contents below at most once:

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

\d{1,5}a digit, repeated between 1 and 5 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

Regular Expression

^\d{1,2}(\.\d{1,5})?$

New

Please help me with a regular expression in javascript which takes one or two digits before decimal point and optional or max five digits after decimal point .Possible values are 12.345
12.12
1.3
1.12345
12
1

Substitution

Please help me with a regular expression in javascript which takes one or two digits before decimal point and optional or max five digits after decimal point .Possible values are 12.345
12.12
1.3
1.12345
12
1