What are some examples of duck typing in programming languages?

What are some examples of duck typing in programming languages?

Duck typing is a concept where the type or class of an object is less important than the methods it defines. In Python, for example, if an object has a method called 'quack', it can be treated as a duck, regardless of its actual class.

Can you give me more examples from other languages?

Sure! In Ruby, duck typing is also prevalent. If an object responds to a method, it can be used in place of any other object that responds to the same method, regardless of its class.

What about JavaScript?

In JavaScript, duck typing is common as well. Functions can accept any object as long as it has the required methods. For instance, if an object has a 'length' property, it can be treated like an array.

Are there any languages that don't use duck typing?

Yes, statically typed languages like Java and C# require explicit type definitions, which means they don't utilize duck typing in the same way.