Angular 2 Input with TypeScript property (getter and setter)

example-component.ts

import { Component, Input } from '@angular/core';

@Component({
  selector: 'example',
  template: `{{data}}` // getting `data` in the template will call the getter method!
})

export class ExampleCoponent {
  private dataInternal: number;
  @Input() set data(data: number) {
    // you might do something special in here
    this.dataInternal = data;
  }
  get data() {
    // you might do something special in here
    return this.dataInternal;
  }
}

template.html

<!-- `data` will be set with the setter method of ExampleComponent  -->
<example [data]="123"></example>