Differences Between TypeScript vs JavaScript
Typescript is an open-source programming language. This means that the Typescript is JavaScript plus other features. We can call it a superset of javascript that means Typescript is JavaScript plus other features.
JavaScript is a lightweight, interpreted programming language. It is a dynamic programming language. JavaScript does not have any multithreading or multiprocessing capabilities. It is used in web development for enhancing HTML pages.
Head to Head Comparison Between TypeScript and JavaScript
Below are the Top 9 comparisons between TypeScript and JavaScript:
Key Differences Between TypeScript and JavaScript
The basic key difference between Typescript and JavaScript is summarized below:
- The main advantage of Typescript over JavaScript is that Typescript is a superset of JavaScript. So Typescript designed for the development of a large program that trans compile to JavaScript.
- JavaScript is used in development for enhancing HTML pages in an interactive and design fashion. It is used, particularly on the client-side. But Typescript may be used to develop a JavaScript application for both client-side and server-side. It is designed for the development of a large application that trans compile to JavaScript.
- One of the main advantages of JavaScript is that it does not require costly development tools, you can start with a simple text editor such as notepad. Since it is an interpreted language inside a web browser, so you don’t even need to buy a compiler. Whereas its counterpart, Typescript is included as a first-class programming language support expensive IDE visual studio 2013 update 2 and Eclipse via a plugin a contribution by particular technologies.
- We cannot use JavaScript as a full-fledged programming language as it lacks various important features such as client-side javascript does not allow the reading or writing of files whereas Typescript is strongly typed object-oriented compile language. It is both a language and a set of tools.
- Typescript supports other JavaScript libraries and Typescript generated JavaScript can reuse all JavaScript frameworks, tools, and libraries.
- The main reason behind the development of typescript by Microsoft is to make it used in the development of large-scale applications both at Microsoft and its external customers.
- JavaScript cannot be used for a network application, because it doesn’t have such support available.
- Typescript support definition file which can hold up type information of existing JavaScript libraries, much like C++ header files which can describe the structure of existing object files? So this allows other programs to use the values defined in the files.
- The typescript compiler is written in Typescript and it compiles to JavaScript.
Comparison Table Between TypeScript and JavaScript
Following is the comparison table between TypeScript and JavaScript.
| Basis Of Comparison Between TypeScript vs JavaScript | TYPESCRIPT | JAVASCRIPT |
| Type | Typescript is a strongly type object-oriented compile language |
JavaScript is a lightweight, interpreted programming language |
| Design & Developed by |
As already explained above, it was designed and developed by Anders Hejlsberg at Microsoft. |
Brendan Eich at Netscape Communications Corporation, Mozilla Foundation, ECMA International. |
| Light/Heavy Weight | It is a heavy weighted. an interpreted programming language. |
It is a light weighted It is specially designed for development of large application and trans compile to JavaScript |
| Client Side/ Server Side | Specially used in Client Side |
Both client-side and server-side |
| File Extension | . ts, .tsx | .js |
| Syntax | Syntax defines a set of rules for writing programs.Every language specification defines its own syntax. A Typescript program is composed of −
|
In JavaScript all the statements are written within Script tagIt tells the browser program to start interpreting all the text between these tags as a script<script>// javascript code</script> |
| Example | var message:string = “Hello India”console.log(message)On compiling, it will generate the following JavaScript code. //it Generated by typescript 1.8.10 var message = “Hello India”; console.log(message);
|
<html> <body> <script language=”javascript” type=”text/javascript”> <!– document.write (“Hello World!”) //–> </script> </body> </html> |
| Benefits |
|
|
| Preference to choose |
Since Typescript is an object-oriented language. Which makes our code more consistent, clean, simple and reusable. So it should better to use typescript for developing large projects. |
JavaScript is preferable to use in relatively small coding projects. |
Conclusion
JavaScript was invented by Brendan Eich in 1995 for the Netscape Navigator web browser of Netscape. It is implemented in C and its code name was Spider Monkey. The project originally called Mocha then rename to Live Script and finally when Netscape and Sun did license agreement, it was again renamed to JavaScript. It got the ECMA standard in 1997. But it is not a fully fledge programming language. It is an interpreted language inside the context of a web browser.
Typescript is design and development especially for large application and trans compile to javascript. It means that Typescript is JavaScript with some extra loaded features. It is designed by Anders Hejlsberg, a designer of C# at Microsoft. It is licensed under Apache 2. It compiled to JavaScript which can be used for any JavaScript Code so, using Typescript has more advantages. Its popularity and its adoption are increasing drastically. The project is improving with every release and more exciting features are added with new releases.
4.5 (3,292 ratings)
View Course
Recommended Articles
This been a useful guide to Difference between TypeScript and JavaScript. Here we have discussed TypeScript and JavaScript head to head comparisons, key differences along with infographics and comparison table. You may also look at the following article to learn more –
Rakesh Bhalani says
This is what I was looking for. Thanks