Hey there! If you're reading this, you're probably gearing up for an interview that involves Angular. Don't worry, I've got your back! Here are the top 20 questions that might come your way. Let's dive in!
- What is Angular?
Think of Angular as your trusty sidekick in creating single-page web applications. It's a TypeScript-based open-source framework developed by the tech giant, Google. - What makes Angular special?
Angular comes with some cool features like two-way data binding, dependency injection, and directives. It's like a Swiss army knife for web developers! - Can you explain two-way data binding in Angular?
Imagine having a conversation where both parties are equally engaged - that's two-way data binding in a nutshell. Any changes in the model will update the view and vice versa. - What are directives in Angular?
Directives are like secret codes on a DOM element that tell Angular's HTML compiler to attach a specified behavior to that DOM element. - What is a scope in Angular?
Scope in Angular is like a bridge between the HTML (view) and the JavaScript (controller). - What is a controller in Angular?
Controllers are the masterminds behind the scenes, providing data and logic to HTML UI. - What is dependency injection in Angular?
Dependency injection is like a delivery service. It delivers components with their dependencies instead of having them hard-coded. - What is a singleton service in Angular?
A singleton service is like that one-of-a-kind item you own. It's a service that only gets instantiated once during the lifetime of an application. - What is the digest cycle in Angular?
The digest cycle is Angular's own surveillance system. It keeps an eye on any changes in the scope model values. - What are filters in Angular?
Filters are like sieves, they select a subset of items from an array and return a new array. - What is routing in Angular?
Routing is like a GPS for your application. It helps in navigating and switching views. - What is a template in Angular?
A template is like a blueprint. It's an HTML snippet that tells Angular how to render the component. - What is an expression in Angular?
Expressions are like conduits, binding data to HTML the same way as ng-bind directives. - What is a module in Angular?
A module is like a container for different parts of an application. It's like a box where you can keep related items together. - What is deep linking in Angular?
Deep linking is like bookmarking your favorite page in a book. It allows you to encode the state of the application in the URL. - What is the difference between link and compile in Angular?
Compile function is like a scout, used for template DOM manipulation and collecting all the directives. The link function is like a builder, used for registering DOM listeners and updating the DOM. - What is a promise in Angular?
A promise is like a rain check. It's a mechanism that lets you defer a stated action until certain conditions are met. - What is a factory method in Angular?
A factory method is like a magic box. It's a method that returns the value that will be used by the service. - What is the use of ng-app, ng-init, and ng-model directives?
ng-app is like the ignition key, it initializes an Angular application. ng-init is like the fuel, it initializes application data. And ng-model is like the steering wheel, it binds the value of HTML controls to application data. - What is the difference between Angular and jQuery?
While both are JavaScript libraries, Angular is like a fully equipped toolbox (a complete framework), while jQuery is like a handy multi-tool (a fast, small, and feature-rich JavaScript library).
Remember, interviews are not just about the right answers but also about the way you convey them. Good luck, and I hope you ace your Angular interview! 🚀