flutter create new app
flutter create myapp=> flityter
Although Effective Dart recommends type annotations for public APIs, the function still works if you omit the types:
isNoble(atomicNumber) {
return _nobleGases[atomicNumber] != null;
}
For functions that contain just one expression, you can use a shorthand syntax:
bool isNoble(int atomicNumber) => _nobleGases[atomicNumber] != null;
The => expr syntax is a shorthand for { return expr; }. The => notation is sometimes referred to as arrow syntax.flutter
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