Regular Expressions 101

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An explanation of your regex will be automatically generated as you type.

Regular Expression

Regex Versions


/

Delimiters


/
s

Regex Flags


Unit Tests

given the string 03343-000 assert that regex does match
given the string 03343000 assert that regex does not match
given the string 0 assert that regex does match
given the string 0000 assert that regex does match
given the string 00000 assert that regex does match
given the string 00000- assert that regex does match
given the string 000001 assert that regex does not match
given the string 00000-00a assert that regex does not match

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