RegExpMatch is versatile to find if a complex pattern is in a string.

Example

For email regular expression match We can use this.

'john@mdriven.net'.regExpMatch('^[a-A-0-9+_.-]+@[a-A-0-9.-]+\.[a-zA-Z]{2,3}$')

This returns True

See alsoDocumentation:OCLOperators_regExpSplit