2. AngularJS application consists of
- view, which is the HTML.
- model, which is the data available for the current view.
- controller, which is the javascript function or business logic.
- routes, which is the href mapping.
3. Javascript commonly place at the end of the body. However, it is recommended that the AngularJS library load at the <head>. The library has been loaded first then the angular.module can only be compiled.
4. Value attribute on an input text field is ignored when there is ng-model. Example: <input type="text" ng-model="name" value="Simon"> // value Simon is ignore!
5. I think if you wish to build a single page application, React, or Angular is better than AngularJS. AngularJS long term support will not have new functionality. It is just matters of time when this framework would obsolete.
https://angularjs.org/
https://www.w3schools.com/angular/angular_intro.asp
