This document discusses scaling up JavaScript applications by using TypeScript. TypeScript adds optional static typing, classes, interfaces and generics to JavaScript to enable building large enterprise applications. It compiles to regular JavaScript and works on any browser. Many IDEs and text editors have plugins for TypeScript. It introduces datatypes like Boolean, Number, String and interfaces like functions and classes to provide a more robust development experience for JavaScript.

1. Scaling up JavaScript
By
Neha Gawade
802973941

9.  JavaScript augmented by
 class-based OOP of ES6
 structural type system of ES4.
 Our code is being compiled to regular JavaScript and
supposed to work on any browser
 Easy integration with existing JavaScript code
 Provides optional static typing, classes, interfaces, generics
and modularity
 Generated code follows the “good parts”
 Ready for large enterprise applications

11.  Visual Studio, Visual Studio Code and WebMatrix
 IntelliJ IDEA, WebStorm and PhpStorm
 Eclipse and NetBeans
 Sublime Text
 Emacs and Vim
 Atom
 Brackets
 Plugins for Grunt, Gulp, Maven
 TSLint
 and more...

12. Install NodeJS
https://github.com/nodejs/node
Install Typescript compiler
npm install –g typescript
Compile a file
tsc example.ts

13.  Datatypes
 Functions
 Classes and Interfaces
 Generics
 Modules

14.  Boolean
 Number
 String
 Array
 Enum
 Any
 Void

20.  >250 languages compiles to JavaScript
 Keep using JavaScript. Try Babel to start using the next generation
JavaScript right now.
 If you want static type checking, better tools, want a short learning curve
from JavaScript or already know C#/C++/Java then try TypeScript
 If you want more concise code, lots of syntactic sugar or already know Ruby
then try CoffeeScript

21. “Microsoft’s TypeScript may be the best of the many JavaScript
front ends. It seems to generate the most attractive code.”
Douglas Crockford
“What impressed me most is TypeScript doesn’t do. It doesn't
output type checking into your JavaScript code.”
Nicholas C. Zakas
"CoffeeScript is to Ruby as TypeScript is to Java/C#/C++."
Luke Hoban (co-creator of TypeScript)