normalizedDistance method

@override double normalizedDistance(String s1, String s2)

Returns a similarity between 0.0 (exact same) and 1.0 (completely different).

Implementation

@override
double normalizedDistance(String s1, String s2) {
  int maxLength = max(s1.length, s2.length);
  if (maxLength == 0) {
    return 0.0;
  }
  return 1.0 - (_length(s1, s2) / maxLength);
}