Regular Expressions 101

^start of string

\d*a digit, repeated any number of times

\.the literal . (46₁₀ / 56₈ / 2E₁₆)

Character Class[1-9]*

*matches any number of characters from the set below:

1-9one character from 1 (49₁₀) to 9 (57₁₀)

Group 1([0]+)*

*repeats the group contents below any number of times:

Character Class[0]+

+matches at least one character from the set below:

0the literal 0 (48₁₀ / 60₈ / 30₁₆)

$end of string, or before its final line terminator

Global pattern flags

g modifier: global. Finds all matches instead of stopping after the first

Detailed match information will be displayed here automatically.

Search reference

Regular Expression

^\d*\.[1-9]*([0]+)*$

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