Whats is angular 5
1. A platform = Angular js work on modern platform App. 2. A framework = Yes it is framework not a libraries, it is a framework of javascript. 3. Cross platform = Angular is a cross platform, it means, we can work on mobile app and Web app. 4. SPAs(Single Page Applications) = Angular also work on single page application, it means when click on any link related to page, only will reload the component. 5. Related things = React, Vue.js, Ember.js etc.