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Top 50 Angular Interview Questions

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00:00:00 Introduction
00:01:58 What is Angular?
00:04:50 What are Angular advantages?
00:07:32 What is the difference between AngularJS and Angular?
00:10:42 What is NPM?
00:12:16 What is CLI tool?
00:13:57 Section 2
00:14:25 What are Components in Angular?
00:17:14 What is a Selector and Template?
00:18:40 What is Module in Angular? What is app.module.ts file?
00:21:43 How an Angular App gets Loaded and Started? What are index.html, approot, selector and main.ts?
00:25:42 What is a Bootstrapped Module & Bootstrapped Component?
00:27:20 Section 3
00:27:54 What is Data Binding in Angular?
00:30:13 What is String Interpolation in Angular?
00:32:08 What is Property Binding in Angular?
00:35:06 What is Event Binding in Angular?
00:38:07 What is Two way Binding in Angular?
00:41:55 Section 4
00:42:19 What are Directives? What are the type of directives?
00:44:49 What is *ngIf Structural directive?
00:46:43 What is *ngFor Structural directive?
00:48:06 What is *ngSwitch Structural directive?
00:50:35 What is [ngStyle] Attribute directive?
00:53:45 What is [ngClass] Attribute directive?
00:56:26 What is the difference between Component, Attribute and Structural Directives?
00:58:08 Section 5
00:58:29 What is Decorator?
01:00:15 What are the types of Decorator?
01:01:05 What are Pipes? What are the types of Pipes & Parameterized Pipes?
01:03:25 What is Chaining Pipes?
01:04:14 Section 6
01:04:38 Explain Services with Example?
01:06:32 How to create Servicein Angular?
01:10:04 How to use Dependency Injector with Services in Angular?
01:11:56 What is Hierarchical Dependency Injection?
01:14:34 What is Provider in Angular?
01:15:46 What is the role of @Injectable Decorator in a Service?
01:19:57 Section 7
01:20:11 What are ParentChild Components?
01:23:40 What are Lifecycle Hooks in Angular?
01:27:09 What is a Constructor in Angular?
01:29:24 What is ngOnInit life cycle hook in Angular?
01:30:52 What is the difference between constructor and ngOnInit?
01:35:21 Section 8
01:36:01 What are Asynchronous operations?
01:38:20 What is the difference between Promise and Observable?
01:42:47 What is RxJS?
01:45:21 What is Observable? How to implement Observable
01:50:10 What is the role of HttpClient in Angular?
01:51:26 Section 9
01:51:50 What is Typescript? Or What is the difference between Typescript and Javascript?
01:57:55 What is the difference between let and var keyword?
2:00:59 What is Type annotation?
02:02:27 What are Built in/ Primitive and UserDefined/ Nonprimitive Types in Typescript?
02:04:21 What is “any” type in Typescript?
02:06:37 What is Enum type in Typescript?
02:08:48 What is Type Assertion in Typescript?
02:10:47 What are Arrow Functions in Typescript?

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