Duck Typing in JavaScript and TypeScript

Duck Typing in JavaScript and TypeScript

Duck Typing is an implementation of the Duck Test concept. Let's learn how Duck Typing in JavaScript and TypeScript.

JavaScript has come a long way since its birth in the 90s. Major improvements have been incorporated with it along its journey. It should be noted JavaScript started out and is still not an OOP-based language. JavaScript initially did not contain “class” related syntax and inheritance was based on prototypes. Later with the release of ES6, JavaScript introduced the “class” based syntax to provide familiarity to OOP-based developers. But the problem was that these so-called “classes” were still not pure classes. They followed the previous prototypal inheritance and just contained the new syntactic sugar.

Since JavaScript was implementing this new syntactic sugar-based OOP approach, it was unable to provide certain prominent features of OOP languages. We will be discussing one such missing feature and its solution today. We will also be discussing this concept being implemented in TypeScript as well.

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