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Question 1: What is AngularJS?

Answer: AngularJS is a JavaScript framework used for building dynamic single-page web applications.

Question 2: What is two-way binding in AngularJS?

Answer: Two-way binding is a feature of AngularJS that allows the synchronization of data between the model and view.

Question 3: What is the difference between $scope and $rootScope in AngularJS?

Answer: $scope is used to define properties that are available only within the controller, while $rootScope is used to define properties that are available globally across the application.

Question 4: What is a directive in AngularJS?

Answer: A directive is a custom HTML element or attribute that is used to extend the functionality of HTML.

Question 5: What is a module in AngularJS?

Answer: A module is a container for the different parts of an AngularJS application including controllers, directives, services, filters, and more.

Question 6: What is an AngularJS controller?

Answer: An AngularJS controller is a JavaScript function that is used to manage the data and behavior of a particular part of the application.

Question 7: What is the difference between ng-if and ng-show/ng-hide in AngularJS?

Answer: ng-if removes the element from the DOM, while ng-show/ng-hide only changes the CSS display property.

Question 8: What is the use of ng-repeat directive in AngularJS?

Answer: ng-repeat is used to iterate over a collection of items and create a new HTML element for each item.

Question 9: What is the use of ng-model directive in AngularJS?

Answer: ng-model is used to bind the value of an HTML input element to a property of the $scope.

Question 10: What is a service in AngularJS?

Answer: A service is a reusable component in AngularJS that provides a specific functionality.

Question 11: What is the difference between a factory and a service in AngularJS?

Answer: A factory is a function that returns an object, while a service is a constructor function that is called with the ‘new’ keyword.

Question 12: What is a provider in AngularJS?

Answer: A provider is a configurable service in AngularJS that can be injected into other parts of the application.

Question 13: What is dependency injection in AngularJS?

Answer: Dependency injection is a design pattern used in AngularJS to provide dependencies to a component without creating them directly within the component.

Question 14: What is a filter in AngularJS?

Answer: A filter is a function that is used to transform data before it is displayed in the view.

Question 15: What is the use of $http service in AngularJS?

Answer: $http service is used to make HTTP requests to the server and retrieve data.

Question 16: What is the use of $timeout service in AngularJS?

Answer: $timeout service is used to delay the execution of a function for a specified amount of time.

Question 17: What is the use of $location service in AngularJS?

Answer: $location service is used to get or set the current URL location.

Question 18: What is the use of $routeParams service in AngularJS?

Answer: $routeParams service is used to retrieve parameters from the URL.

Question 19: What is the use of $q service in AngularJS?

Answer: $q service is used to manage promises in AngularJS.

Question 20: What is the use of $compile service in AngularJS?

Answer: $compile service is used to compile an HTML element with the AngularJS directives.