Duck Typing in Javascript
javascript, oop
Solution
The second link gives an example of a duck-typing-like pattern in js. Not saying I recommend doing this, but... well, you asked for it. ;)
In computer programming with object-oriented programming languages, duck typing is a style of dynamic typing in which an object's current set of methods and properties determines the valid semantics, rather than its inheritance from a particular class or implementation of a specific interface.
Wikipedia - Duck typing
The simplest approach is to define the contract informally and simply rely on the developers at each side of the interface to know what they are doing. Dave Thomas has given this approach the name of "duck typing" —if it walks like a duck and it quacks like a duck, then it is a duck. Similarly with our `Shape` interface, if it can compute an area and a perimeter, then it is a `Shape`.
JavaScript Interfaces and Duck Typing
Problem
Could someone give me an example of Duck Typing inheritance in Javascript? I'm exploring OO javascript and I've heard about duck typing but can't see any examples of it being used in javascript.