Angular

• https://angular.io

• Application = Components + Services | Components = View + Class + MetaData

• Modules => Root Angular Module (components) + Feature Angular Modules (components)

• Supports ES 5. Scripts written in ES 2015 (ES 6) or Typescript should be transpiled. ES = ECMA Script (European Computer Manufacturer's Association)

• Why not Javascript

  • Doesn't provide namespace and all methods/function will be under global namespace
  • No Code Organization
  • AngularJS Modules helps in addressing it (In ES 2015, a file is a module).
    • ES 2015 module

    // exporting module 
    export class Product { }     -> transpiles to ->   function Product() { }
    
    // importing it for use
    import { Product } from './product'
    

    • Angular Module: can communicate to other modules and a module can have many components