What does the didUpdateWidget method return in Flutter?

The didUpdateWidget method in Flutter is called in the state of a widget when its parent widget has been updated and has passed new parameters (props) to this widget.

This method allows you to compare the old widget (oldWidget) with the new one and perform necessary actions when parameters change, such as updating internal state or restarting an animation.

Important: didUpdateWidget does not return a value; it is a void method.

Example usage:

@override
void didUpdateWidget(covariant MyWidget oldWidget) {
  super.didUpdateWidget(oldWidget);
  if (oldWidget.someValue != widget.someValue) {
    // Update state when a parameter changes
    setState(() {
      // ...
    });
  }
}