在Angular2/Typescript中传递回调，引用这个

type CallbackFunction = (data: any) => void;

import { EventEmitter } from '@angular/core';

export class MyComponent {
  callbackEvent: EventEmitter<CallbackFunction> = new EventEmitter<CallbackFunction>();
}

this.callbackEvent.emit((data: any) => {
  // 回调函数的具体实现
});

import { Component, Output } from '@angular/core';

@Component({
  selector: 'my-receiver',
  template: `
    <button (click)="triggerCallback()">触发回调</button>
  `
})
export class MyReceiverComponent {
  @Output() callbackEvent: EventEmitter<CallbackFunction> = new EventEmitter<CallbackFunction>();

  triggerCallback() {
    this.callbackEvent.emit((data: any) => {
      // 处理回调数据
    });
  }
}