What is duck typing?

Duck typing is a programming concept where the type of an object is determined not by its explicit declaration or inheritance, but by the presence of certain methods and properties. If an object behaves like a "duck" (has the necessary methods and properties), it can be used as that type.

For example, if a function expects an object with a quack() method, any object that has this method will be suitable, regardless of its class.

This allows for writing more flexible and dynamic code, where the importance is on interface compatibility rather than specific type inheritance.