What is Typescript?

Typescript is a free and open-source programming language which is designed and developed by Microsoft. It was designed by Anders Hejlsberg at Microsoft. Typescript is a superset of JavaScript which primarily provides optional static typing, classes and interfaces. Typescript is compiled to provide clean and simple JavaScript code which runs on any browser. It allows JavaScript developers for using highly productive development tools and practices like static checking and code refactoring.

Differences between Typescript and JavaScript are

1. JavaScript don’t support Es6 while Typescript supports .
2. JavaScript build up reusable components by using unctions and prototype-based inheritance while Typescript supports Classes that allow programmer to think in more object oriented way .
3. JavaScript don’t have any interfaces while Typescript has interfaces.
4. There is no static typing in JavaScript whereas there is static typing in Typescript.
5. JavaScript has no optional parameter  feature while Typescript has optional parameter feature.