toString method Null safety

  1. @override
String toString()
override

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() {
  return const <int, String>{
    0: 'FontWeight.w100',
    1: 'FontWeight.w200',
    2: 'FontWeight.w300',
    3: 'FontWeight.w400',
    4: 'FontWeight.w500',
    5: 'FontWeight.w600',
    6: 'FontWeight.w700',
    7: 'FontWeight.w800',
    8: 'FontWeight.w900',
  }[index]!;
}