将字符串参数传递给启用了Socket.io的Angular 2组件

npm install socket.io-client --save

import { Component } from '@angular/core';
import * as io from 'socket.io-client';

export class MyComponent {
  private socket: SocketIOClient.Socket;

  constructor() {
    this.socket = io('服务器地址');
  }
}

export class MyComponent {
  // ...

  sendStringParameter(param: string) {
    this.socket.emit('event_name', param);
  }
}

<input type="text" [(ngModel)]="param">
<button (click)="sendStringParameter(param)">发送</button>