问题描述
VAR该app = angular.module('app的',[]);
VAR应用= angular.module('app的',['ui.bootstrap']);
app.controller('MenuSideController',['$范围,SnazzyService','$模式,$日志',函数($范围,SnazzyService,$模式,$日志){
$ scope.user.zoomlvl ='2';
}]);
我上面的控制器,它设置了一个 $范围
,我永远只能从内部访问的值。
但我看到的地方,使用下面我将能够访问 $范围
但是当我的console.log($范围)
的 $ scope.user.zoomlvl
不存在。
我无法弄清楚如何访问 MenuSideController
$范围和更新,与 valZoom
变量。
VAR appElement = document.querySelector('[NG-应用=该app]');
变量$ =范围angular.element(appElement).scope();
的console.log($范围内);
$范围。$应用(函数(){
$ scope.user.zoomlvl = valZoom;
});
在没有看到标记,我猜MenuSideController的范围是一个子范围,您选择的范围。
虽然可以遍历下来的树像这样(假设我们想要的范围的第一个孩子):
VAR appElement = document.querySelector('[NG-应用=该app]');
VAR另外,AppScope = angular.element(appElement).scope();
VAR controllerScope =另外,AppScope $$ childHead。
的console.log(controllerScope.user);
这是简单的只需选择其中特定的控制器连接的元素。
假设你正在使用的 NG-控制器
指令:
<机身NG控制器=MenuSideController>< /身体GT;
做,而不是:
VAR controllerElement = document.querySelector('身体');
变种controllerScope = angular.element(controllerElement).scope();
的console.log(controllerScope.user);
演示:
angular.element(文件)。就绪(函数(){ VAR appElement = document.querySelector('[NG-应用=该app]');
VAR另外,AppScope = angular.element(appElement).scope(); 的console.log('从另外,AppScope运行到controllerScope:',另外,AppScope $$ childHead.user);
VAR controllerElement = document.querySelector('身体');
变种controllerScope = angular.element(controllerElement).scope(); 的console.log('直接从controllerScope:',controllerScope.user);
controllerScope。$应用(函数(){
controllerScope.user.zoomlvl ='10';
});
});
var theApp = angular.module('theApp', []);
var app = angular.module('theApp', ['ui.bootstrap']);
app.controller('MenuSideController', ['$scope','SnazzyService','$modal','$log', function($scope, SnazzyService, $modal, $log) {
$scope.user.zoomlvl = '2';
}]);
I have the above controller and it sets a $scope
which I can only ever access the values from inside.
But I seen somewhere that using the below I would be able to access the $scope
but when I console.log($scope)
the $scope.user.zoomlvl
it doesn't exist.
I cannot figure out how to access the MenuSideController
$scope and update that with the valZoom
variable.
var appElement = document.querySelector('[ng-app=theApp]');
var $scope = angular.element(appElement).scope();
console.log($scope);
$scope.$apply(function() {
$scope.user.zoomlvl = valZoom;
});
Without seeing the markup, I guess the scope of MenuSideController is a child scope to the scope you are selecting.
While it is possible to traverse down the tree like this (assuming the scope we want is the first child):
var appElement = document.querySelector('[ng-app=theApp]');
var appScope = angular.element(appElement).scope();
var controllerScope = appScope.$$childHead;
console.log(controllerScope.user);
It is simpler to just select the element where the specific controller is attached.
Assuming you are using the ng-controller
directive:
<body ng-controller="MenuSideController"></body>
Do instead:
var controllerElement = document.querySelector('body');
var controllerScope = angular.element(controllerElement).scope();
console.log(controllerScope.user);
Demo: http://plnkr.co/edit/WVNDG9sgYgoWaNlrNCVC?p=preview
angular.element(document).ready(function() {
var appElement = document.querySelector('[ng-app=theApp]');
var appScope = angular.element(appElement).scope();
console.log('Traversing from appScope to controllerScope:', appScope.$$childHead.user);
var controllerElement = document.querySelector('body');
var controllerScope = angular.element(controllerElement).scope();
console.log('Directly from controllerScope:', controllerScope.user);
controllerScope.$apply(function() {
controllerScope.user.zoomlvl = '10';
});
});
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