将变量从控制器范围传递到指令 [英] Passing variable from controller scope to directive

问题描述

在我的控制器中，我定义了 $ scope.worker 这是一个普通的JS对象：

In my controller I've defined $scope.worker which is a plain JS object:

{
    name: 'Peter',
    phone: [phone]
}

我创建了一个指令：

.directive('phoneType', [function () {
    return {
        restrict: 'A',
        link: function (scope, element, attrs) {
            console.log(attrs);
        }
    };
}])

我的HTML如下所示：

and my HTML looks like this:

<span phone-type="worker.phone"></span>

如何传递 worker.phone （在这个例子中601002003）从控制器范围到指令，所以我可以在链接方法中创建我的逻辑？ attrs.phoneType 现在显示 worker.phone string。

How do I pass worker.phone (in this example 601002003) from the controller scope to the directive, so I can create my logic in the link method? attrs.phoneType right now shows me worker.phone string.

推荐答案

您也可以通过双向绑定将值传递给指令：

You could also pass the value to the directive via two way binding:

.directive('phoneType', [function () {
    return {
        scope: {
          phoneNumber: '=phoneType'
        }
        link: function (scope, element, attrs) {
            // now do stuff with the number, you can access it through the scope
            scope.phoneNumber // contains the number
        }
    };
}])

现在您可以直接通过隔离范围访问该号码。
模板看起来像这样：

Now you can access the number directly through the isolate scope. Template would look like this:

<span phone-type="worker.phone"></span>

顺便说一下，你不需要限制A.这是默认行为。

By the way, you don't need the restrict A. This is the default behavior.

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