Typescript vs Javascript

TypeScript Vs JavaScript: What is the Difference?

It is possible to develop interactive web pages with the help of JavaScript, which is a scripting language. It adhered to the guidelines of client-side programming, which enables it to function in the web browser of the end user without requiring any resources from the web server. It is also possible to utilise Javascript in conjunction with other technologies such as REST APIs, XML, and many others.

The development of this script is being done with the intention of turning it into a supplementary scripting language, much like Visual Basic is to C++ in the language families offered by Microsoft. However, JavaScript was not intended to be used for the development of huge and complicated applications. It was designed to work with programmes that have a few hundred lines of code or less.

The following are some of the distinctions between TypeScript and JavaScript that you will study in this tutorial:

What is TypeScript?

TypeScript is a development language that is similar to JavaScript but more up to date. It is a statically built language that may be used to write code that is both straightforward and straightforward. It may be executed on Node.js as well as any web browser that supports ECMAScript 3 or a later version.

TypeScript offers static typing as an alternative, in addition to classes and interfaces. Adopting Typescript as part of a large-scale JavaScript project can result in software that is both more resilient and more easily deployed with a standard JavaScript application.

Why JavaScript?

The primary distinction between TypeScript and JavaScript is the subject of the next lesson in this series.
Why do we need JavaScript?
Project based on open source software that is supported by Microsoft
Instrument developed specifically for use with shorter scripts
Supports classes, interfaces & modules.
JavaScript that has been compiled can be executed in any browser.
Cross-compilation is supported.
You are able to expand JavaScript in order to write huge applications.
Provides assistance with classes, interfaces, and modules.
Why do we use TypeScript?
TypeScript supports JS libraries & API Documentation
It is more comprehensive than JavaScript.
It is a scripting language that can be typed in or not.
TypeScript It is possible to transform code into standard JavaScript code.
Methods of programming that are more object-oriented and have improved code organisation
Allows for improved tool support during the development time

Why TypeScript?

It is able to enhance the capabilities of the language beyond the typical decorators and async/await.
JavaScript’s Past and Its Future
Brendan Eich, a programmer working at Netscape Communications Corporation, is credited with developing JavaScript. The intention was for it to function with Netscape navigator. On the other hand, as it gained a lot of popularity as a scripting tool, it was renamed LiveScript. Later on, it was renamed JavaScript to reflect Netscape’s support of Java within their browser. This was done so that JavaScript would not be confused with Java.

Let’s have a look at a significant turning point in the development of JavaScript:

It was first distributed to the public in September of 1995, and the development of this electronic scripting language, which was at first referred to as Mocha, took only ten days.
JavaScript was first presented to ECMA by Netscape in November of 1996. (European Computer Manufacturers Association) International
In 1998, ECMAScript 2 was made available to the public.
1999 saw the release of ECMAScript version 3.

Difference Between TypeScript and JavaScript

Following is the main TypeScript and JavaScript difference:



Typescript Vs JavaScript

Typescript Vs JavaScript



Parameter Typescript JavaScript
What is Powerful type system, including generics & JS features Lightweight, interpreted, object-oriented language with first-class functions
Data Binding TypeScript uses concepts like types and interfaces to describe data being used. No such concept is available with JavaScript.
Ecosystem The Ecosystem is quite powerful and intuitive. Thus, it allows you to statically type various type of idiomatic JavaScript features like union types, intersection, discriminated union. JavaScript offers the option to explore and create code without a build step.
Npm package With Typescript, many npm packages either come with static type definitions or have an external one that is easy to install. JavaScript offers the option to explore and create code without a build step.
Learning curve Stiff learning curve. Requires prior scripting knowledge. Flexible and easy to learn, scripting language.
Prototyping Typescript has a feature of prototyping. JavaScript doesn’t have this feature.
Community Typescript does not have a large community of developers. The JavaScript has a huge community of developers
Compilation TypeScript code needs to be compiled No need to compile JavaScript.
Annotation To get the most out of TypeScript features, developers should constantly annotate their code. No Annotations Required is need for JavaScript.
Famous Company using the Technology Asana, Clever, Screen award Airbnb, Codecademy, Instagram
Salary The average salary for “Typescript developer” ranges from approximately $148,027 per year in United States The average salary for a JavaScript Developer is $110,777 per year in the United States.

2005 is the year that Eich and Mozilla become members of ECMA and begin work on the E4X Java script.
The CommonJS project was initiated in January 2009 with the purpose of developing a common standard library.
In June of 2011, ECMAScript 5.1 was made available for public use. ECMAScript 2016 has been made available.
The most recent version, ECMAScript 2017, was made available for download in June of 2017.

History of JavaScript

The following are significant turning points in the history of TypeScript:

After two years of internal development at Microsoft, the typescript was made available to the public for the very first time in the year 2012. TypeScript 0.9 was made available to the public in 2013.
Additional assistance for generic products Build 2014 saw the release of TypeScript version 1.0.
A brand new TypeScript compiler was released in July of 2014, and it is five times faster than the one that came before it.
Support for ES6 modules, namespace keywords, for, of support, and decorators was introduced in July of 2015.
In November of 2016, an additional functionality such as key and lookup types mapping types, and rest was implemented.
Typescript was updated on March 27, 2018, to include support for conditional types as well as better key with intersection type support.
JavaScript’s Capabilities and Features
It’s a language that works on multiple platforms, and it’s utilised both on the client side and the server side.
It’s simple to pick up and use from the get-go.
It is a dynamic language that is both adaptable and potent.
You have “the tremendous freedom” to do anything you want with any object. There are no restrictions.
Dependencies were added as a result of the rigorous testing workflow.
Lack of Support for the Framework
Characteristics of the Maintainability of Typescript

History of TypeScript

Provided excellent levels of productivity for programmers
Code navigation and the elimination of errors
“Discoverability” of source code and refactoring
Optional Annotation of Static Type / Typing of Static Type
Added Functionality to the Features of the Functions
Supports The ES6 programming language has support for interfaces, sub-interfaces, classes, and subclasses.
Scalable HTML5 client-side development
Full-featured integrated development environment (IDE) with support for autocomplete and code navigation.
Object-oriented, class-based programming with the ability to inherit both private members and interfaces.