Prescriptive Framework - AngularJS is prescriptive in the sense that it has a recommended way of building web apps. It has its own spin on the ubiquitous MVC pattern that is especially well suited for JavaScript.

Core Features

Dependency Injection
- The built-in support for DI makes it easy to assemble a web application from smaller, thoroughly tested services
Two-way Data Binding
- It makes it easy to change a value and effortlessly have it update the DOM. This means that there is only one place in your application where that piece of information is stored
Strong Focus on Testability
- The design of the framework and the tooling around it promote testing practices at each stage of the development process.
Deep Linking
- The framework makes it easy to share and change the application state. The URL of the application reflects what the user is doing.
Unique Templating System
- It uses HTML as the templating language
- It doesn't require an explicit DOM refresh, as AngularJS is capable of tracking user actions, browser events, and model changes to figure out when and which templates to refresh
- It has a very interesting and extensible components subsystem, and it is possible to teach a browser how to interpret new HTML tags and attributes (Directives!!!)
  - You can create custom DOM elements, attributes, or classes that attach functionality that you define in JavaScript

Core concepts

Advantages:
- Keeps our global namespace clean
- Eases writing tests as well as keeps them clean as easy to target isolated functionality
- Eases to share code between applications
- Allows different parts of the code to be loaded in any order

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