JavaScript has gotten a ton of commendation as a result of its incredible highlights to improve the site. It is the most utilized programming language for some web development projects for a web development company and has been in presence for some time now. However, JavaScript’s code got perplexing and substantial as it filled in prevalence. Accordingly, JavaScript couldn’t meet the necessities of an Object-oriented programming language. This confines JavaScript from prevailing as a server-side innovation in the undertaking. The development group at that point made TypeScript overcome this issue. TypeScript can be characterized as a kind of JavaScript with a bunch of extra highlights.

In this post, we will be describing JavaScript and TypeScript along with the differences they possess.

JavaScript

A famous programming language in web advancement is object-situated and lightweight regarding memory and supports cross-stage improvement. It is for the most part utilized on the client-side of a website page. The Javascript code is known as a script. The script is installed inside pages and executed spontaneously when a page loads.

The runs as it is given in straightforward content and needn’t bother with any unique assemblages. This component makes JavaScript generally quick.

Features of JavaScript:

  1. Minimal reloading speed

JavaScript instantaneously cites any adjustments done by developers to the client side. As a result, the developer will not have to wait a long time.

  1. Object-Oriented Scripting Language

As Java Script has a window object, Object Centered Language features built in the object. Java Script and Visual Basic are two common examples of object-oriented languages. Object-centred languages are mostly used for features such as polymorphism, which is the ability to take an object in multiple forms. Polymorphism is required in object-oriented programming whenever we need to represent a reference from a parent class to an object of a child class.

  1. Client-Side Language

Initially created as a server-side, Javascript is additionally utilized as a client-side language. This element of Javascript made it the essential language of the web. An engineer doesn’t have to learn distinctive coding languages for server-side and server-side in light of the fact that Javascript can be utilized as both.

  1. Syntax similar to Java

Javascript was created to be a companion to Java. Javascript was not designed to have the same syntax as Java. However, further, development compelled it to do so. This simplified things for developers who work in both languages.

  1. Use of DOM

The purpose behind Javascript is to control the DOM. The web was simply static in its initial days. The presentation of Javascript made it dynamic. DOM helps in changing the entirety of the HTML components on the page and the entirety of their characteristics It can likewise alter the CSS of every HTML component on the page. Javascript can embed new components into the page while eliminating existing ones. It additionally can create new HTML occasions. The web has been adjusted because of DOM control. 

Typescript

It is an open-source object-oriented scripting language. A Typescript file has the “.ts” extension which can easily run on any device.

It is one of the JavaScript supersets that can easily compile to JavaScript.

Typescript running in a browser, on the other hand, is a completely different aspect. It must first be compiled in order to generate a JavaScript file that can be run in a browser.

Features of Typescript:

  1. Object-oriented programming language

TypeScript includes all of the features of an object-oriented programming language, such as classes, interfaces, inheritance, modules, and so on. TypeScript permits us to compose code for both client-side and server-side.

  1. JavaScript libraries supported by TypeScript

All JavaScript elements supported by TypeScript. It enables developers to use pre-existing JavaScript code with TypeScript. We can conveniently use all of the JavaScript frameworks, tools, and other libraries in this environment.

  1. JavaScript is TypeScript

This means that JavaScript code with a valid.js extension can be transferred to TypeScript by changing the extension from.js to.ts and compiling with all other TypeScript file types.

  1. Portable

It is portable in the sense that it can be executed on any browser, device, or operating system. It can be executed in any environment that supports JavaScript. Its execution is not limited to any virtual environment.

  1. It is simply JavaScript

TypeScript code isn’t directly executed on any browser. TypeScript programs consistently start with JavaScript and also end with it. Subsequently, we just need to comprehend JavaScript to utilize it in TypeScript. TypeScript code is compiled and transformed into its JavaScript counterpart. This is referred to as trans-piled. Browsers can read TypeScript code and display the output using JavaScript code.

Differences between JavaScript and TypeScript are listed below:

JavaScript TypeScript
Strongly typed or static typing are not supported. It supports both strongly typed and static typing.
It was developed by Netscape in 1995. It was developed in 2012 by Anders Hejlsberg.
The source file for JavaScript has the “.js” extension. The TypeScript source file has the extension “.ts.”
It is run directly in the browser. It does not run directly in the browser.
It’s simply a scripting language.

 

 It supports concepts from object-oriented programming such as classes, interfaces, inheritance, generics, and so on.
It does not accept optional parameters. It allows for the use of optional parameters.
Since it is an interpreted language, the errors would be highlighted at runtime. During development, it compiles the code and highlights errors.
Modules are not supported by JavaScript.

 

 Modules are supported by TypeScript.
The objects, in this case, are a number and a string. Number and string are the interfaces in this case.
Generics are not supported by JavaScript. Generics are supported by TypeScript.

Conclusion:

Javascript is a lightweight programming language that is being used to develop dynamic web pages.  But nevertheless, it is not a full-fledged programming language. And since Typescript is compiled to JavaScript, it can be used for JavaScript codes, making it more prominent. With each new Typescript release, new and improved features make it ideal.

Happy reading!