[AngularJS] Provider

最新推荐文章于 2025-08-09 20:51:19 发布

转载最新推荐文章于 2025-08-09 20:51:19 发布 · 64 阅读

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原文链接：http://www.cnblogs.com/Answer1215/p/4189424.html

文章标签：

#javascript #ViewUI

本文详细阐述了Angular Factory的工作原理及其如何使应用程序更加动态。通过深入内部机制，展示了Factory的构建过程，并说明了如何利用Factory简化应用开发。

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This lesson describes what is really happening when you use the angular
factory and how you can make your factories even more dynamic in creation.
This gets further into the internals of AngularJS by showing you how a factory is built dynamically for you and how they have reduced the plumbing you need to make applications.

Factory:

<!DOCTYPE html>
<html>
<head lang="en">
  <meta charset="utf-8">
  <title>Egghead Videos</title>
  <link rel="stylesheet" href="vendor/foundation/foundation.min.css">
</head>
<body>

  <div ng-app="app" ng-controller="AppCtrl">
    <h1 class="panel">{{title}}</h1>
  </div>

  <script type="text/javascript" src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.5/angular.min.js"></script>
  <script type="text/javascript" src="app/js/main.js"></script>
</body>
</html>

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

app.factory("game", function() {
    return {
        title: "StarCraft"
    }
})

app.controller("AppCtrl", function($scope, game) {
    $scope.title = game.title
});

"app.factory" is just simply short-hand for using this "provide object":

/**
 * Created by Answer1215 on 12/27/2014.
 */
var app = angular.module("app", []);

app.config(function($provide) {
    $provide.factory("game", function() {
        return{
            title: "StarCraft"
        }
    })
})

app.controller("AppCtrl", function($scope, game) {
    $scope.title = game.title
});

"Factory" is really just shorthand for the provider which sets up a more generic provider which returns things or objects that have "get" functions:

/**
 * Created by Answer1215 on 12/27/2014.
 */
var app = angular.module("app", []);

app.config(function($provide) {
    $provide.provider("game", function() {
        return{
            $get: function() {
                return{
                    title: "StarCraft"
                }
            }
        }
    })
})

app.controller("AppCtrl", function($scope, game) {
    $scope.title = game.title
});

If you want to set up something like game provider and set the type of game:

/**
 * Created by Answer1215 on 12/27/2014.
 */
var app = angular.module("app", []);

app.provider("game", function() {

    var type;
    return{
        setType: function(title) {
            type = title;
        },
        $get: function() {
            return{
                title: type + "Craft"
            }
        }
    }
})

app.config(function(gameProvider) {
    gameProvider.setType("War");
})

app.controller("AppCtrl", function($scope, game) {
    $scope.title = game.title
});