Difference between TypeScript and JavaScript

JavaScript has been undoubtedly the standard programming language of the web browser. But while it is the inevitable result of any frontend work or backend development with Node.js, nowadays it is not every developer’s favorite building material.

Developers are turning to TypeScript as their go-to language for writing web applications.

Let’s check out TypeScript vs JavaScript comparison which will help you in understanding the difference in the simplest of ways!

JS directly runs in a browser or on a server in the case of Node.js(thanks to V8 JS engine!)

whereas TypeScript is a superset of JS. It needs to be compiled into JS to execute.

JavaScript is a scripting language supporting object-oriented programming language concepts.

TypeScript is a full-fledged object-oriented programming language.

JavaScript is liberal in data types though it supports all primitive types, whereas TypeScript is a strictly typed language.

JavaScript does not support features like generics and type annotations, Inference, Enums, and Interfaces whereas TypeScript has all these mentioned features.

JavaScript is comparatively more flexible in development time. Typescript’s core function is to eradicate development errors.

We can classify the JavaScript modules in two ways: Importing a module, Exporting a module. TypeScript has namespaces along with importing & exporting of modules as well.

JavaScript is a flexible and easy-to-learn scripting language. TypeScript rather has a stiff learning curve & requires prior scripting knowledge.

I am sure now you have a fair understanding about the differences between TypeScript & JavaScript. Generally, we see that bigger projects are managed well with Typescript language structure.

What do you think about TypeScript? Do let me know in the comments section.

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