TypeScript

---

JavaScript that Scales

TypeScript is a superset of JavaScript. It includes static typing which is the main feature of TypeScript. That means it gives errors at compile time.

TypeScript compiler compiles TypeScript code into JavaScript with specification ES3 or above.

TypeScript can be downloaded using node package manager using following command.

npm install -g typescript

You can check various options by typing tsc on command line.

You can also check the version of TypeScript compiler using:

tsc -v

Prerequisite:

This lessons assume familiarity with OOP, preferably Java or C#. This course does not explain OOP concepts so it would be helpful if you already know about them.

Benefits of Typescript

• Compilation
• Strong typing
• Integration with popular JS libraries
• Encapsulation
• Private and public member variables

Table of Contents

1. Variables in TS
2. Complex Types
3. Configuration