使用 angular.element 通过 $ID 获取范围对象 [英] Use angular.element to get scope object by $ID

问题描述

我需要将数据从 angular 应用程序传递给在 angular 之外运行的脚本，因为我无权编辑 angular 应用程序的代码.

使用 Chrome 的 Angular Batarang 和 NG-Inspector 扩展，我可以看到我需要从中提取的 JSON 对象，但我不知道如何开始.

例如，在 Angular Batarang 中，对象看起来像:

$id=5名称:上市"键:0:阿尔法"1:测试版"α:用户:测试"用户 ID:12345"测试版:地址:555 Elm St"电话:555.555.5555

我最初的想法是我可以使用 angular.element 抓取它，但我没有成功.

解决方案

您可以确定该作用域绑定到哪个元素，选择该元素，并通过 angular.element.假设这个范围附加到元素

</div>，观察下面的例子，特别是对 .scope()

<div ng-app="app" ng-controller="ctrl" id="stuff"></div><button onclick="getStuff()">获取东西</button>

<小时>

var app = angular.module('app', []).controller('ctrl', function($scope) {$scope.inside = { 'name': 'guy', 'idk': 'blah' }});var getStuff = function() {var 外部 = angular.element(document.getElementById('stuff')).scope();console.log(outside.inside)//检索到 AngularJS 的外部"}

JSFiddle 示例 - 演示

<小时>

更新

根据 docs，必须启用调试模式.

<块引用>

scope() - 检索当前元素或其父元素的范围.需要启用调试数据.

默认启用，禁用它 会在这里引起问题

I need to pass data from an angular app to scripts that run outside of angular because I do not have access to editing the code of the angular app.

Using Angular Batarang and NG-Inspector extensions for Chrome, I can see the JSON object I need to pull from, but I am at a loss of how to start.

For instance, in Angular Batarang, the object looks like:

$id=5
name: "listing"
keys:
   0: "alpha"
   1: "beta"
alpha:
   user: "test"
   userID: "12345"
beta: 
   address: "555 Elm St"
   phone: [phone]

My initial thought was I could grab it using angular.element but I haven't had any successes.

解决方案

you can determine which element that scope is bound to, select the element, and grab it's scope via angular.element. Assume this scope is attached to element <div id="stuff"></div>, observe the following example, specifically, the call to .scope()

<div ng-app="app" ng-controller="ctrl" id="stuff"></div>

<button onclick="getStuff()">get stuff</button>

---

var app = angular.module('app', []).controller('ctrl', function($scope) {
   $scope.inside = { 'name': 'guy', 'idk': 'blah' }
});

var getStuff = function() {
    var outside = angular.element(document.getElementById('stuff')).scope();
    console.log(outside.inside) // retrieved "outside" of AngularJS
}

JSFiddle Example - demo

---

Update

Per the docs, debug mode must be enabled.

scope() - retrieves the scope of the current element or its parent. Requires Debug Data to be enabled.

It's enabled by default, and disabling it will cause issue here

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