在onInit函数中访问transclude槽

Question

我有一个旧的AngularJS＆lt; 1.4我要使用angular.component('component', {bindings..., onInit...})转换的组件。以前的代码如下所示：

angular.module('Module').directive('myComponent', [
  () => {
    return {
      restrict: 'E',
      transclude: {
        slotA: '?slotA'
      },
      link(scope, _element, _attrs, _ctrl, transclude) {
        scope.isFilled = transclude.isSlotFilled('slotA');
      }
    };
  }
]);

我想转换为：

angular.module('Module').component('myComponent', {
  transclude: {
    slotA: '?slotA'
  },
  onInit() {
    this.isFilled = transclude.isSlotFilled('slotA');
  }
});

但是如何访问transclude变量呢？

Answer 1

我找到解决此问题的唯一方法：

angular.module('Module').component('myComponent', {
  transclude: {
    slotA: '?slotA'
  },
  controller: ['$transclude', ($transclude) => {
    this.$onInit = () => {
      this.isFilled = transclude.isSlotFilled('slotA');
    };
  }]
});