角度 5 键控错误

Question

我收到一个错误，上面写着

错误

类型错误：_co.onKey 不是函数 at Object.eval [as handleEvent]

import { Component } from "@angular/core";

@Component({
    selector: "sandbox",
    templateUrl: "sandbox.component.html",
    styleUrls: ["./sandbox.component.css"]
})
export class SandboxComponent {
    fireEvent(e){
        console.log(e.type);
    }
}

.html

<input (keyup)="fireEvent($event)">

Answer 1

看起来你只需要在输入标签中添加type="name"。

TS ：

import { Component } from '@angular/core';
@Component({
  selector: 'my-app',
  templateUrl: './app.component.html',
  styleUrls: [ './app.component.css' ]
})
export class AppComponent  {
  name = 'Angular 5';
      fireEvent(e){
        console.log(e,e.keyCode);
    }
}

.HTML：

  <input type="name" (keyup)="fireEvent($event)">

样品在这里 ： https://stackblitz.com/edit/angular-jbym58?file=app%2Fapp.component.ts