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| 1 | +# Angular Interview Questions & Answers |
| 2 | + |
| 3 | +> Click :star:if you like the project. Pull Request are highly appreciated. Follow me [@kansiris87](https://twitter.com/kansiris87) for technical updates. |
| 4 | + |
| 5 | +### Table of Contents |
| 6 | + |
| 7 | +| No. | Questions | |
| 8 | +|---- | --------- |
| 9 | +|1 | [What is Angular Framework?](#what-is-angular-framework)| |
| 10 | +|2 | [What is the difference between AngularJS and Angular?](#what-is-the-difference-between-angularjs-and-angular)| |
| 11 | +|3 | [What is TypeScript?](#what-is-typescript)| |
| 12 | +|4 | [Write a pictorial diagram of Angular architecture?](#write-a-pictorial-diagram-of-angular-architecture)| |
| 13 | +|5 | [What are the key components of Angular?](#what-are-the-key-components-of-angular)| |
| 14 | + |
| 15 | + |
| 16 | +1. ### What is Angular Framework? |
| 17 | + |
| 18 | + Angular is a **TypeScript-based open-source** front-end platform that makes it easy to build applications with in web/mobile/desktop. The major features of this framework such as declarative templates, dependency injection, end to end tooling, and many more other features are used to ease the development. |
| 19 | + |
| 20 | +2. ### What is the difference between AngularJS and Angular? |
| 21 | + Angular is a completely revived component-based framework in which an application is a tree of individual components. |
| 22 | + |
| 23 | + Some of the major difference in tabular form |
| 24 | + |
| 25 | + | AngularJS | Angular | |
| 26 | + |---- | --------- |
| 27 | + | It is based on MVC architecture | This is based on Service/Controller | |
| 28 | + | This uses use JavaScript to build the application| Introduced the typescript to write the application | |
| 29 | + | Based on controllers concept| This is a component based UI approach| |
| 30 | + | Not a mobile friendly framework| Developed considering mobile platform| |
| 31 | + | Difficulty in SEO friendly application development| Ease to create SEO friendly applications| |
| 32 | + |
| 33 | +3. ### What is TypeScript? |
| 34 | + TypeScript is a typed superset of JavaScript created by Microsoft that adds optional types, classes, async/await, and many other features, and compiles to plain JavaScript. Angular built entirely in TypeScript and used as a primary language. |
| 35 | + You can install it globally as |
| 36 | + ``` |
| 37 | + npm install -g typescript |
| 38 | + ``` |
| 39 | + Let's see a simple example of TypeScript usage, |
| 40 | + ```typescript |
| 41 | + function greeter(person: string) { |
| 42 | + return "Hello, " + person; |
| 43 | + } |
| 44 | + |
| 45 | + let user = "Sudheer"; |
| 46 | + |
| 47 | + document.body.innerHTML = greeter(user); |
| 48 | + ``` |
| 49 | + The greeter method allows only string type as argument. |
| 50 | + |
| 51 | + |
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