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General Tech Bugs & Fixes 2 years ago
Posted on 16 Aug 2022, this text provides information on Bugs & Fixes related to General Tech. Please note that while accuracy is prioritized, the data presented might not be entirely correct or up-to-date. This information is offered for general knowledge and informational purposes only, and should not be considered as a substitute for professional advice.
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What are the differences between a Service, Provider and Factory in AngularJS?
Service
Provider
Factory
factory
service
provider
var myApp = angular.module('myApp', []); //service style, probably the simplest one myApp.service('helloWorldFromService', function() { this.sayHello = function() { return "Hello, World!"; }; }); //factory style, more involved but more sophisticated myApp.factory('helloWorldFromFactory', function() { return { sayHello: function() { return "Hello, World!"; } }; }); //provider style, full blown, configurable version myApp.provider('helloWorld', function() { this.name = 'Default'; this.$get = function() { var name = this.name; return { sayHello: function() { return "Hello, " + name + "!"; } } }; this.setName = function(name) { this.name = name; }; }); //hey, we can configure a provider! myApp.config(function(helloWorldProvider){ helloWorldProvider.setName('World'); }); function MyCtrl($scope, helloWorld, helloWorldFromFactory, helloWorldFromService) { $scope.hellos = [ helloWorld.sayHello(), helloWorldFromFactory.sayHello(), helloWorldFromService.sayHello()]; }
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js">script> <body ng-app="myApp"> <div ng-controller="MyCtrl"> {{hellos}} div> body>
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