How do you use ChangeDetectorRef in Angular?

ChangeDetectorRef allows you to manually control change detection:

• detectChanges(): Run change detection immediately.
• markForCheck(): Mark component to check in next cycle.
• detach(): Stop change detection for component.
• reattach(): Resume change detection.

✅ Example:

constructor(private cd: ChangeDetectorRef) {}

updateData() {

this.data = fetchNewData();

this.cd.detectChanges(); // manually trigger update

}