Function oneOf

oneOf<TOptions, const TChars extends string | string[]>(
chars: TChars,
): Parser<string, TOptions, GraphemeUnion<TChars>>
Make a parser that matches and returns a character if it is present in a given character samples string/array.

Tokens expected to be individual characters/graphemes.
Type Parameters
- TOptions
- const TChars extends string | string[]
Parameters
- chars: TChars
  An array (or a string) of all acceptable characters.
Returns Parser<string, TOptions, GraphemeUnion<TChars>>