watch changes in input decorators

Input-decoractor-changes.ts

// set up some class with an input decorator (the one we want to watch and act upon change


export class MyComponent {
  myBooleanValue: boolean;
  @Input()
  set myBooleanValue(newValue: boolean) {
    // will display this message as soon as the value of 'myBooleanValue' changes
    console.log(`old value was ${this.booleanValue}, new value is ${newValue}`;
    this.myBooleanValue = newValue;
  }
}