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What is the difference between Typescript and Javascript?

Typescript and JavaScript are two widely known languages in the Software development companies, but what are their differences and what use cases are better suited for one over the other? In this blog, we will have a look at both of these languages and understand how they relate to one another, discuss their primary differences, and outline the benefits of each.

What is Javascript?

JavaScript is a scripting language which helps you to create interactive web pages. It follows rules of client-side programming, so it runs in the user's web browser without the need of any resource forms the web server. You can also use Javascript with another technologies like REST APIs, XML and more.

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

What is Typescript?

Typescript is a modern age Javascript development language. It is a stagnantly compiled language to write clear and simple Javascript code. It can be run on Node.js or any other browsers which supports ECMAScript 3 or newer versions.

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

History of Javascript and Typescript

History of Javascript

Netscape Communications Corporation programmer Brendan Eich created Javascript. It was meant to working Netscape navigator. However, after becoming a popular scripting tool, it has become LiveScript. Later on, it was renamed as JavaScript to reflect Netscape's support of Java within its browser.

Let’s see an important landmark in the history of Javascript:

  • It was launched in September 1995, and It took just ten days to develop this scripting language which was initially called Mocha
  • In November 1996, Netscape submitted JavaScript to ECMA (European Computer Manufacturers Association) International
  • ECMAScript 2 was released in 1998
  • ECMAScript 3 was released in 1999
  • In 2005, Eich and Mozilla join ECMA to develop E4X Java script
  • In January 2009, the CommonJS project was launched with the aim of defining a common standard library
  • In June 2011, ECMAScript 5.1 was released
  • In June 2015. ECMAScript 2016 was released
  • The current version is ECMAScript 2017 which was released in June 2017
  • History of Typescript

    It is an open-source programming language. It is designed by Anders Hejlsberg, designer of C# at Microsoft. It is licensed under Apache 2. We can call it a superset of Javascript. It is designed and developed especially for large application and Trans compile to Javascript. It means that Typescript is JavaScript with some extra loaded features.

    Let’s see important landmarks from the History of Typescript:

  • The typescript was first made public in the year 2012
  • After two years of internal development, Typescript 0.9, released in 2013 at Microsoft.
  • Additional support for generics Typescript 1.0 was released at Build 2014
  • In July 2014, a new Typescript compiler came which is five times faster then it's previous version
  • In July 2015, support for ES6 modules, namespace keyword, decorators added in Typescript
  • In November 2016, an added feature like key and lookup types mapped types, and rest added in Typescript
  • On 27 March, 2018 conditional types, the improved key and it’s intersection types supports added in the Typescript.
  • Difference between features of JavaScript and TypeScript

    Features of Javascript
  • It is a cross-platform language.
  • It is used for client side and server side.
  • It is a flexible, powerful and dynamic language.
  • It has huge active community of developers which makes it more popular language.
  • It has extension of .js
  • It has Strong Testing Workflow.
  • Added Dependencies.
  • It is a light weight and interpreted programming language.
  • Features of Typescript
  • It supports Static Typing.
  • It supports optional parameter function.
  • Better choice for large coding projects.
  • Offers great productivity for developers.
  • It is specially used in Client side.
  • It has extension of .ts and .tsx.
  • Code navigation and bug prevention.
  • Code 'discoverability' & refactoring
  • Additional Features for Functions
  • Supports interfaces, sub-interfaces, classes, and subclasses
  • Scalable HTML5 client-side development
  • Rich IDE available with autocomplete and code navigation features.
  • Class-based object-oriented with the inheritance of private members and interfaces.
  • Typescript is a strongly type object oriented compile language.
  • Typescript code is not understandable by any browsers and that’s why it is compiled and converted in to Javascript.
  • Conclusion: Who is better?

    In the end, we can say that if an experienced developer is working on relatively small coding projects, then JavaScript is ideal which is used by many Custom software development Companies. However, if you have knowledge and expertise development team, then Typescript is a most preferred option.