Character Class Summary

The following table defines various character class sequences. Use these alphanumeric patterns to simplify your regex searches.

Character Class	Description
`[0-9]`	Matches any digit from 0 to 9.
`[a-zA-z]`	Matches any alphabetic character.
`[a-zA-z0-9]`	Matches any alphanumeric character.
`[^0-9]`	Matches any non-digit.
`[^a-zA-z]`	Matches any non-alphabetic character.