isLetter property
bool
isLetter
true if this is non-null, non-empty and consists of only letters: a-zA-Z
Implementation
bool get isLetter => this != null && _letterPattern.hasMatch(this!);
true if this is non-null, non-empty and consists of only letters: a-zA-Z
bool get isLetter => this != null && _letterPattern.hasMatch(this!);