@Inject(PLATFORM_ID) private platformId code example

Example: @Inject(PLATFORM_ID)private platformId

component.ts

import { Component, Inject } from '@angular/core';
import { PLATFORM_ID } from '@angular/core';
import { isPlatformBrowser } from '@angular/common';

@Component({
  selector: 'mySpecial',
  templateUrl: './mySpecial.component.html'
})
export class MySpecialComponent {
  isBrowser: boolean;

  constructor( @Inject(PLATFORM_ID) platformId: Object) {
    this.isBrowser = isPlatformBrowser(platformId);
  }
}
component.html

<h2>Hello World</h2>
<p>
  <md-select *ngIf="isBrowser" placeholder="Favorite food" name="food">
    <md-option value="Steak">Steak</md-option>
    <md-option value="Pizza">Pizza</md-option>
    <md-option value="Tacos">Tacos</md-option>
  </md-select>
</p>