It’s easy to get up and running with TypeScript, a strongly-typed superset of JavaScript. We’ll cover:
For this video, I used Sublime Text 3 without any TypeScript package installed. However, I recommend trying Microsoft's TypeScript package. It's in alpha state, but has excellent code completion, safe renaming, go to declaration and find references.
https://github.com/Microsoft/TypeScript-Sublime-Plugin
It can be installed via the popular Package Control in Sublime. Look for the package named simply "TypeScript".