As per TypeScript official website,
TypeScript is a typed superset of JavaScript that compiles to plain JavaScript.
It was introduced by Microsoft in 2012 and it is completely open source. The compiled JavaScript runs in any browser on any operating system and on any host.
The main theme of Typescript is to provide useful tools for large scale applications by implementing the features like classes, type annotations, modules, inheritance, etc.
The features of TypeScript are enforced only at compile-time.
Some of the compelling benefits of TypeScript are following
The importance of TypeScript is going to be more and more with the popularity of several JavaScript frameworks like Angular2, Knockout etc.
More and more posts are being submitted, keep visiting regularly to learn TypeScript How to's ....