在Dart Angular中,如何将函数传递给组件 [英] In Dart Angular, how to pass functions to component
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问题描述
我有一个组件MyComp,我想传递一个函数作为参数。
更准确地说,我想做这样的事情:
I have a component MyComp and I would like to pass a function to it as parameter. More precisely I would like to do something like that:
dart组件文件:
@NgComponent(
selector: 'mycomp',
publishAs: 'ctrl',
map: const {
'myfunc' :'=> myfunc'
}
)
class MyComponent {
Function myfunc;
....
myfunc();
}
html: b
<mycomp myfunc="ctrl.myfunc"></button-list>
问题是myfunc在组件中为null。
我错过了什么吗?
The problem is that myfunc is null in the component. Do I miss something? How can I do that?
推荐答案
使用'&'将函数绑定到字段:
Use '&' to bind a function to a field:
@NgComponent(
selector: 'mycomp',
publishAs: 'ctrl',
map: const {
'myfunc' :'&myfunc'
}
)
class MyComponent {
Function myfunc;
....
myfunc();
}
http://ci.angularjs.org/view/Dart/job/angular.dart-master /javadoc/angular.core/NgComponent.html#map
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