isLettersOnly method

bool isLettersOnly()

Returns true if the String contains only letters (Latin or Greek).

Example

String text = 'hello world';
bool isLettersOnly = text.isLettersOnly(); // Returns true

Implementation

bool isLettersOnly() {
  if (this.isBlank) {
    return false;
  }
  final onlyLetters = this.onlyLetters;

  return onlyLetters.length == this.length;
}