Code to update file app.ts

import {Component} from '@angular/core'

import {Sizer} from './sizer'

          @Component (
					{
             selector: 'digit',
             provider: [],
             template:`
            <div>
            <p [sizer]="200">Hi {{name}}</p>
            </div>
            `,
            directives: [Sizer]
              }
			)
  export class App {
             constructor() {
             this.name = 'digit'
					}
				}