DI - Class constructor injection

t2.component.ts

import { Component } from '@angular/core';
import { Control, Validators, FormBuilder } from '@angular/common';
@Component({
  moduleId: module.id,
  selector: 't3-app',
  templateUrl: 't3.component.html',
  styleUrls: ['t3.component.css']
})
export class T3AppComponent {
  form;

  constructor(private formBuilder: FormBuilder) {}

  ngOnInit(){
  	this.form = this.formBuilder.group({
  	  'medium': new Control('Movies'),
  	  'name': new Control('',Validators.compose([
  	  	Validators.required,
  	  	Validators.pattern('[\\w\\-\\s\\/]+'),
  	  ])),
  	  'year': new Control('',this.yearValidation)
  	});
  }

  yearValidation(control){
  	if(control.value.trim().length === 0) return null;
  	var year = parseInt(control.value);
  	var minYear = 2000;
  	var maxYear = 2010;
  	if(year >= minYear && year <= maxYear) return null;
  	return {'year': {'min':minYear, 'max':maxYear}}
  }

  title:any;
  
  onSubmit(data){
  	this.title = data;
  }
}