chars property
The characters of a string.
A character is a Unicode Grapheme cluster represented by a substring of the original string.
Please use StringCharacters.characters https://github.com/dart-lang/characters/blob/10527437926f1b454edf9912fe700aa2506b1c3d/lib/src/extensions.dart#L9
Implementation
@Deprecated('Use .characters from the official characters package')
Iterable<String> get chars => Characters(this);