Has method in Dart

In Dart, you can use the hasOwnProperty method to check whether a class has a specific method or not. Here is an example of how you can do it:

class Shape {
  void draw() {
    print('Drawing a shape...');
  }
}
void main() {

  var shape = new Shape();

  

  // Check if the "draw" method exists in the Shape class

  if (shape?.hasOwnProperty('draw')) {

    shape.draw();

  }

}

In the example above, we have defined a Shape class with a draw method. Then, we have created an instance of the Shape class and checked if it has a draw method using the hasOwnProperty method. If the method exists, we call it using the object's instance.

It is important to note that the hasOwnProperty method returns a boolean value, which is true if the object has the specified property, and false otherwise.