[英]read ng-init data from controller
我是angularJS的新手，我想从contoller访问ng-init数据，但始终返回undefined，这是我的代码
的HTML
<div class="row" ng-controller="IFuseController" ng-init="myText='Hello World!'">
....
</div>
角度控制器
uniqcApp.controller('IFuseController', function (IFuseService, $scope) {
console.log("Cingda " + $scope.myText); //return undefined
});
任何想法？
发生这种情况是因为在加载时调用了控制器，而此时您没有为变量myText设置值。
加载文本后，您需要触发一个事件。
演示
var uniqcApp = angular.module('uniqueApp',[]); uniqcApp.controller('IFuseController', function ($scope){ $scope.read = function(){ console.log("Cingda " + $scope.myText); }; });
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"></script> <body ng-app="uniqueApp"> <div class="row" ng-controller="IFuseController" ng-init="myText='Hello World!'"> <button ng-click="read()">Read initial value</button> </div> </body>
您可以强制将ng-init结果绑定到$scope ：
var uniqcApp = angular.module('uniqueApp', []); uniqcApp.controller('IFuseController', function($scope) { var el = angular.element(document.querySelector('[ng-controller=IFuseController]')); var attr = el[0].getAttribute('ng-init'); $scope.$eval(attr); console.log("Cingda " + $scope.myText); });
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.2.23/angular.min.js"> </script> <body ng-app="uniqueApp"> <div class="row" ng-controller="IFuseController" ng-init="myText='Hello World!'"> </div> </body>
为什么不在控制器端初始化数据？ 如果您仍然想要这样做，可以使用$ watch
$scope.$watch('myText',function(newVal){
alert(newVal);
})
使用ng-init将数据从ng-repeat发送到另一个控制器
[英]Using ng-init to send data from a ng-repeat to another controller
Angular：在没有ng-init的情况下将HTTP请求数据加载到控制器中
[英]Angular: Loading HTTP request data into a controller without ng-init
通过调用角度控制器函数从ng-init指令初始化服务器数据？
[英]Initialize the server data from ng-init directive via calling angular controller function?
声明:本站的技术帖子网页，遵循CC BY-SA 4.0协议，如果您需要转载，请注明本站网址或者原文地址。任何问题请咨询:yoyou2525@163.com.