为什么在AngularJS的$ scope中的ng-init中设置的变量未定义? [英] Why is the variable set in ng-init undefined in $scope in AngularJS?

问题描述

我在视图中使用ng-init设置了一个变量，然后尝试在控制器中访问该变量.但是，当我尝试访问它时，出现了undefined.

I have a variable I'm setting in my view with ng-init which I am then trying to access in my controller. When I try to access it however, I'm getting an undefined.

相关代码段:

我的观点:

<div ng-controller="MyCtrl">
  <div ng-init="pageTitle = 'kittens'">
  </div>
</div>

我的控制器:

var MyCtrl;

MyCtrl = function($scope) {
  return console.log($scope.pageTitle);
};

JSFiddle

我在这里想念什么?

推荐答案

等待直到变量被初始化.

Wait until the variable is init.

$scope.$watch('pageTitle', function () {
    console.log($scope.pageTitle); 
});

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