What is a module?

A module is a block which defines the boundaries of an angular application.Outside a module ,the angular features and properties will not work. It is implemented by using the directive “ng-app” and is referenced just below the angular framework’s javascript files. It is defined in the following fashion : 

 var app = angular.module("myApp", []);

In this code snippet,”myApp” is the name of the module and is mandatory.The square brackets “[]”, help to inject dependencies in our angular application.