home4.ts

import { Component } from '@angular/core';
import { Meta } from '@angular/platform-browser';

@Component({
  selector: 'my-app',
  templateUrl: './home.html',
})

export class HomeComponent {
 constructor(private meta: Meta) {
    this.meta.addTag({ name: 'description', content: 'How to use Angular 4 meta service' });
    this.meta.addTag({ name: 'author', content: 'talkingdotnet' });
    this.meta.addTag({ name: 'author', content: 'Other Author' }, true);
    const author = this.meta.getTags('name=author');
    console.log(author[0]); //<meta name="author" content="talkingdotnet">
    console.log(author[1]); //<meta name="author" content="Other Author">
  }
}