Typescript versus JavaScript: What’s the Difference between the two? - NullClass

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Typescript versus JavaScript: What’s the Difference between the two?

Typescript versus JavaScript: What’s the Difference between the two?

What is JavaScript?


JavaScript Tutorial - An Ultimate Guide for Beginners


JavaScript is basically a scripting language which helps you create interactive web pages. It followed rules of client-side programming, so it works and runs on the user’s web browser without the need of any resources form of the web server. You can also use Javascript with other technologies like REST APIs, XML, and many more.

The idea behind the development of this script is to make it a complementary scripting language like Visual Basic was to C++ in the Microsoft’s language families. However, JavaScript is not designed for large complex and complicated applications. It was developed for applications with a few hundred lines of the code!

In this Typescript versus the JavaScript differences blog post, you will get to learn:

  • What is JavaScript?
  • What is Typescript?
  • Why JavaScript?
  • Why Typescript?
  • what are the Differences Between JavaScript and TypeScript
  • History of Javascript
  • History of Typescript
  • Features that are included in the Javascript
  • Features of Typescript
  • JavaScript Versus TypeScript: Which one is better?

What is Typescript?

Typescript is a modern age Javascript development language. It is a statically and mathematically compiled and integrated language to write clear and simple Javascript code. It can be run on Node javascript or any web browser which supports ECMAScript 3 or newer versions or updates.

Typescript provides us with an optional static typing, classes, and interface. For a large JavaScript project adopting Typescript can bring you more robust and quick software and easily deployable with a general JavaScript application.

Next, we will get to learn about the key difference between TypeScript and JavaScript.


  • JavaScript is a scripting language that helps and enables you to create and develop interactive web pages whereas Typescript is a superset of JavaScript.
  • Typescript code needs and requires to be compiled while JavaScript code doesn’t need to compile.
  • Comparing TypeScript with JS, Typescript supports a feature of prototyping while JavaScript does not support this particular feature.
  • Typescript makes use of the concepts like types and interfaces to describe and explain the data being used whereas JavaScript has no such sort of concept.
  • Typescript is a very powerful type system, including generics & JS features for large size project whereas JavaScript is the ideal option for projects which are small sized.

Why JavaScript?


Why Javascript | atnyla


  • Open source project with the Microsoft’s patronage
  • It is specially designed tool for small scripts
  • It supports classes, interfaces as well as modules.
  • Compiled JavaScript runs in any and every browser
  • Allows cross platform compilation
  • You can extend JavaScript for writing large apps
  • Adds support for the classes, interfaces, and modules

Why Typescript?


Why You Should Use TypeScript


  • TypeScript supports JavaScript libraries & the API Documentation
  • It is a superset of the Javascript
  • It is optionally typed scripting language
  • TypeScript Code can be converted into simple and plain JavaScript Code
  • Better code formation and structuring and object-oriented programming techniques
  • Allows and enables for better development time tool support
  • It can extend and prolong the language beyond the standard decorators, async/await

Difference between JavaScript and TypeScript

Following are the key TypeScript and JavaScript differences:


Typescript Versus JavaScript

Parameter Typescript JavaScript
What is The Powerful type system, including generics & JavaScript features Lightweight, interpreted, object-oriented programmimg language with first-class functions
Data Binding TypeScript makes use of concepts like types and interfaces to describe data being used. No such sort of concept is available with JavaScript.
Ecosystem The Ecosystem is really powerful and intuitive. Thus, it enables you to statically type various type of idiomatic JavaScript features like union types, intersection, discriminated union. Javascript offers you the option to explore and create code without a build step.
Npm package With the help of Typescript, many npm packages either come with a static type definitions or have an external one that is easy to install. Javascript offers the option to explore and develop code without a build step.
Learning curve Stiff learning curve. Requires and needs prior scripting knowledge. Very flexible and easy to learn, scripting language.
Prototyping Typescript has the feature of prototyping. JavaScript doe not have this feature.
Community Typescript does not have a very large community of developers. The JavaScript has a very large community of developers
Compilation TypeScript code needs to be compiled at the end No need to compile the JavaScript code.
Annotation To get the most out of TypeScript features, developers should constantly and regularly annotate their code. No Annotations are Required is need for Javascript.
Famous Company using the Technology Asana, Clever, Screen award Airbnb, Codecademy, Instagram
Salary The average salary for the “Typescript developer” is a bit lesser as compared to the other The average salary for a Javascript Developer is higher than Typescript developer salary

Features of Javascript

  • It’s a cross platform language
  • It’s generally used for client side and server side
  • It’s very easy to learn and to start with
  • It’s a dynamic language: which means that it is more flexible and a lot more powerful
  • You have ‘the great freedom’ to do whatever you wish to do with any object
  • Strong Testing Workflow
  • There are added Dependencies
  • Framework Unsupported

Features of Typescript

  • Maintainability
  • Offers great productivity for developers
  • Code navigation along with a feature for bug prevention
  • Code ‘discoverability’ and also refactoring
  • Optional Static Type Annotation or Static Typing
  • Additional Features for the Functions
  • It supports ES6
  • Supports the interfaces, sub-interfaces, classes, as well as subclasses
  • Scalable HTML5 client-side development
  • Rich IDE available with the auto-complete and code navigation features.
  • Class-based object-oriented programming language with the inheritance of private members and interfaces.

JavaScript versus TypeScript: Which is better?

In the end of this JavaScript and TypeScript differenceblog post, we can say that if an experienced developer is working on comparatively small coding projects, then JavaScript is ideal. However, if you possess the knowledge and expertise development team, then Typescript is a more preferred option.


December 25, 2021

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