Function createCharSet

createCharSet(chars: Iterable<Char | CharRange | Readonly<PredefinedCharacterSet>>, flags: Readonly<Flags>): CharSet
Creates a new character set with the characters equivalent to a JavaScript regular expression character set.
Parameters
- chars: Iterable<Char | CharRange | Readonly<PredefinedCharacterSet>>
  
  The characters in the set.
- flags: Readonly<Flags>
  
  The flags of the pattern.
Returns CharSet