Basic Concepts (1-20)

How do you use *ngIf, *ngFor, and *ngSwitch directives? Purpose of Asking This Question: Understanding the usage of *ngIf, *ngFor, and *ngSwitch directives is crucial for creating dynamic and conditional components in Angular. The *ngIf directive allows you to conditionally render elements based on a boolean expression. The *ngFor directive is used for iterating over … Read more

Explain the concept of two-way data binding in Angular. Purpose of Asking This Question: To assess the candidate’s understanding of Angular concepts, particularly two-way data binding. To evaluate the candidate’s ability to effectively communicate complex concepts in a simple manner. To gauge if the candidate can demonstrate practical knowledge and application of Angular’s two-way data … Read more

How do you implement form handling in Angular? Purpose: Why this question is being asked: Please find below the points: To assess your understanding of Angular’s form handling capabilities. To gauge your knowledge of best practices for implementing form handling in Angular. To determine if you can effectively use Angular’s built-in features for form validation … Read more

Explain the angular event-binding process. In Angular, event binding is a way to capture and respond to user actions, such as button clicks or mouse movements, by executing methods defined in the component. The process of event binding involves three steps. First, the event is defined within HTML elements using the `event` binding syntax in … Read more

What are observables in Angular and how are they used? Purpose of asking this question : The purpose of asking about observables in Angular is to gauge the candidate’s understanding of asynchronous programming and data handling in the framework. Observables are a key concept in Angular that represent data streams and allow developers to work … Read more

Explain the difference between constructor and ngOnInit in Angular. What is purpose of asking this question : Interviewers often ask this question to gauge the candidate’s understanding of Angular lifecycle hooks and their ability to properly structure and initialize components in an Angular application. Understanding the difference between constructor and ngOnInit is important for creating … Read more

What are pipes in Angular and give an example of a built-in pipe? The concept of pipes in Angular is a powerful feature that allows developers to transform data directly within the template, making it easier to display and manipulate information for users. One example of a built-in pipe in Angular is the ‘date’ pipe, … Read more

How do you create a new Angular project using CLI? To create a new Angular project using CLI, you first need to have Node.js and npm installed on your system. Once you have those installed, open up your terminal or command prompt and run the command `npm install -g @angular/cli` to install the Angular CLI … Read more

What is routing in Angular? Routing in Angular refers to the process of navigating between different components or views in a single-page application. It allows users to switch between different parts of the application without having to reload the entire page. By defining routes and configuring navigation paths, developers can create a seamless and interactive … Read more

What is dependency injection in Angular? Dependency injection in Angular is a design pattern that allows for the external configuration and management of dependencies within a component. This means that instead of a component creating its own dependencies, they are passed in from an external source. This not only makes the component more flexible and … Read more