message: docs: fix issue 24571 in ngOnChanges
  fix issue in ngOnChanges doc
  PR Close
diff: @@ -106,8 +106,7 @@ describe('lifecycle hooks examples', () => {
  // #docregion OnChanges
  @Component({selector: 'my-cmp', template: `...`})
  class MyComponent implements OnChanges {
  - // TODO(issue/24571): remove '!'.
  - @Input() prop!: number;
  + @Input() prop: number = 0;
  ngOnChanges(changes: SimpleChanges) {
  // changes.prop contains the old and the new value...
  