import { Component, Input, OnInit } from '@angular/core';
@Component({
  selector: 'app-example',
  templateUrl: './app-example.component.html',
  styleUrls: ['./app-example.component.css']
})
export class ExampleComponent implements OnInit {
  @Input() local_variable: any;

  constructor() { }

  ngOnInit() {
    if (local_variable) {
      console.log(local_variable);
    }
  }

}