toString method

@override String toString()

A string representation of this object.

Some classes have a default textual representation, often paired with a static parse function (like int.parse). These classes will provide the textual representation as their string representation.

Other classes have no meaningful textual representation that a program will care about. Such classes will typically override toString to provide useful information when inspecting the object, mainly for debugging or logging.

Implementation

@override
String toString() {
  List<Fraction> results;

  // Trying to not compute the fraction (if possible).
  if (_cache.containsKey(fraction)) {
    results = _cache[fraction]!;
  } else {
    results = compute();

    // We can cache it if caching is enabled.
    _cache[fraction] = List<Fraction>.from(results);
  }

  final buffer = StringBuffer()..writeAll(results, ' + ');

  return buffer.toString();
}