how-change-detection-works-in-angular-projects.md

contributors
Jia Li

How change detection works in Angular projects

Suggested resources

• Faster Angular Applications - Part 1. On Push Change Detection and Immutability by Minko Gechev
• Faster Angular Applications - Understanding Differs. Developing a Custom IterableDiffer by Minko Gechev

Suggested topics

• Dirty checking
• Differs
• Change detection strategies
  • Default change detection (relies on Zone.js)
  • On push change detection (skip dirty checking unless input property references change)
• Manual change detection
  • ngDoCheck vs. ngOnChanges
  • Experimental Ivy options
    • markDirty
    • detectChanges
• NgZone
  • When and how does it trigger change detection?
  • How do we opt out?