How to inject document.body in Angular 2

I want to add some text in showlist.component.html. My code is given below, I am not aware how to use document.body in Angular 2.

import { Component, OnInit } from '@angular/core';
import { DOCUMENT } from '@angular/platform-browser';

@Component({
  selector: 'app-showlist',
  templateUrl: './showlist.component.html',
  styleUrls: ['./showlist.component.css']
})
export class ShowlistComponent implements OnInit {

public myname = "saurabh";

  constructor() { }

  ngOnInit() {
//this.myname.appendTo(document.body);
document.body(this.myname);
 //document.write(this.myname);
  }

}