如何在Angular 1.5中调用另一个组件方法

Question

I am using Angular 1.5. I have two components. I wanted to call child component method from parent component view.

<main-component>
    <child-component></child-component>
    <div ng-if="childComponentMethod()"></div>
<main-component>

Answer 1

如果需要在其他控制器中使用此方法，则应使用服务来共享此方法，或者应在父级中声明它，因为子级可以访问它。

Answer 2

The childComponentMethod method lives in child-component scope, so it is not available outside of it. And what's more, you should not need it. If you do, it means the method should not be in the child-component scope in the first place.

If you need that method only here, just move it to the main-component scope. Otherwise, create a service and move the method there. You can then inject the service where it is needed.