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Angular Framework: Interview Questions/Answers

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  1. What is Angular Framework?
    Angular Framework is an open-source front-end development framework used to build modern web applications.
  2. What is a Component in Angular?
    A component is a building block of an Angular application that contains the logic and templates for a part of the UI.
  3. What is Data Binding in Angular?
    Data Binding in Angular is a mechanism that synchronizes data between the model and view components.
  4. What is a Directive in Angular?
    A Directive in Angular is a way to attach behavior to elements in the DOM, such as adding or removing HTML elements.
  5. What is Dependency Injection in Angular?
    Dependency Injection in Angular is a design pattern used to make code more modular and easier to maintain.
  6. What is the Angular CLI?
    The Angular CLI is a command-line interface tool used to generate, build, test, and deploy Angular applications.
  7. What is a Service in Angular?
    A Service in Angular is a reusable code module that provides shared functionality across an application.
  8. What is Routing in Angular?
    Routing in Angular is the process of mapping URLs to components in an application, enabling navigation between different views.
  9. What is Lazy Loading in Angular?
    Lazy Loading in Angular is a technique used to load modules on-demand, which improves application performance by reducing initial load times.
  10. What is NgZone in Angular?
    NgZone in Angular is a class that manages the execution of asynchronous code and triggers change detection in an application.
  11. What is Change Detection in Angular?
    Change Detection in Angular is a mechanism that detects changes in the application state and updates the UI accordingly.
  12. What is Template Reference Variable in Angular?
    A Template Reference Variable in Angular is a way to reference a DOM element or Angular component in a template.
  13. What is a Module in Angular?
    A Module in Angular is a container for a cohesive block of code that can be used to organize an application into functional units.
  14. What is Reactive Forms in Angular?
    Reactive Forms in Angular is a way to create dynamic, data-driven forms that are reactive to user input.
  15. What is Template-driven Forms in Angular?
    Template-driven Forms in Angular is a way to create forms using templates that are bound to a model.
  16. What is the Angular Material Design?
    Angular Material Design is a set of pre-built UI components based on Google’s Material Design principles, which can be used to create consistent and visually appealing applications.
  17. What is Pipe in Angular?
    A Pipe in Angular is a way to transform data in a template before it is displayed to the user.
  18. What is ViewChild in Angular?
    ViewChild in Angular is a decorator used to access child components or DOM elements from a parent component.
  19. What is ContentChild in Angular?
    ContentChild in Angular is a decorator used to access child components or elements within the content projection of a parent component.
  20. What is ngFor in Angular?
    ngFor in Angular is a directive used to iterate over a collection and render a template for each item.
  21. What is ngIf in Angular?
    ngIf in Angular is a directive used to conditionally render HTML elements based on a boolean expression.
  22. What is ngSwitch in Angular?
    ngSwitch in Angular is a directive used to conditionally render HTML elements based on a variable or expression.
  23. What is ngStyle in Angular?
    ngStyle in Angular is a directive used to dynamically set the styles of an HTML element based on a variable or expression.
  24. What is ngClass in Angular?
    ngClass in Angular is a directive used to dynamically set the CSS class of an HTML element based on a variable or expression.
  25. What is ngModel in Angular?
    ngModel in Angular is a directive used to bind input and output values of an HTML element to a component property.

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