What Is Function Duck Typing

Duck Typing is a way of programming in which an object passed into a function or method supports all method signatures and attributes expected of that object at run time. The object’s type itself is not important. Rather, the object should support all methods/attributes called on it.

What is duck typing used for?

Duck typing in computer programming is an application of the duck test—”If it walks like a duck and it quacks like a duck, then it must be a duck”—to determine whether an object can be used for a particular purpose.

Does JavaScript use duck typing?

duck typing doesn’t work so well in javascript– your object might quack like a floating point number, but it may be just as likely to quack like a string or a boolean.