Method decorators are applied to the methods of a class. They are used to modify or extend the behavior of the methods. A method decorator receives three arguments: the prototype object of the method, the method name, and the property descriptor of the method.

Syntax of a Method Decorator:

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In this example, the methodDecorator is applied to exampleMethod of the ExampleClass class.

Practical Example:

Suppose we want to implement a decorator that only allows a method to be executed once per instance.

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In this example, the once decorator ensures that oneTimeMethod can only be executed once. If it is attempted to be executed again, a message is logged saying that the method can only be executed once.