Who created Angular JS?
AngularJS was developed by Adam Abrons and Misko Hevery. Currently, it is developed by Google.
Explain the main difference between AngularJS and backbone.js
AngularJSBackbone.jsAngularJS is a JavaScript-based open-source framework which is designed to support dynamic web applications.backbone.js is a framework which abstracts DOM into views and data into models and then binds both using…
Explain the concept of scope hierarchy
Each angular application consists of one root scope but may have several child scopes. As child controllers and some directives create new child scopes, an application can have multiple scopes.…
What is DI (Dependency Injection) and how an object or function can get a hold of its dependencies?
DI or Dependency Injection is a software design pattern that deals with how code gets hold of its dependencies. In order to retrieve elements of the application which is required…
What are the characteristics of “Scope”?
To observer model mutations scopes provide APIs ($watch) To propagate any model changes through the system into the view from outside of the Angular realm A scope inherits properties from…
Explain the styling form that ngModel adds to CSS classes
NgModel adds these CSS classes to allow styling of form. Validation classes of AngularJS are: ng- valid ng- invalid ng-pristine ng-dirty
What is the factory function in AngularJS?
For creating the directive, factory method is used. It is invoked only once when the compiler matches the directive for the first time. By using $injector.invoke the factory method is…
What is the main difference between a link and compile in Angular.js?
Compile function: It is used for template DOM manipulation and collects all of the directives. Link function: It is used for registering DOM listeners as well as for instance, DOM manipulation. It…
Explain injector in AngularJS
An injector is a service locator. It is used to retrieve object instances as defined by provider, instantiate types, invoke methods, and load modules. There is a single injector per…
Explain the linking function and its types
Link combines the directives with a scope and produces a live view. For registering DOM listeners as well as for updating the DOM, link function is responsible. After the template…