What is angualarjs ? AngularJS is one of the most p opular JavaScript UI framework which works on client side MVVM model. Here client side means using JavaScript we will create the MVVM. The main advantage here for the AngularJS is Two-way data binding. The two-way data binding is quite easy and simple by using AngularJS. Main Component of Angularjs What is Services ? Services are singletons, which a re objects that are instantiated only once per app (by the $injector). They provide an interface to keep together methods that relate to a specific function. What is filters ? Filters are added to angularjs expression or directives in order to transform the displayed data , they are use by pipe symbol (" | " ). example of filter :- currency Format a number to a currency format. date Format a date to a specified format. filter Select a subset of items from an array. json Format an object to a JSON string. limitTo Limits an array/string, ...