Angular's Reactive Forms

on YouTube ↗46m

" summary

Deep dive into Angular 2 Reactive forms with working demos: a Pizza app upgraded V2→V4 rc3 that reports >50% generated code savings, uses FormBuilder to build FormGroup and FormArray structures, a group-level email matcher validator that realtime-validates confirm email, valueChanges subscriptions to recalc pizza totals, dynamic add/remove pizzas via formArray.push/removeAt, and a custom component wired with ControlValueAccessor so custom size and toppings controls stay fully in sync with the form.

AI-written summary · about

" chapters (15)

1. 0:00Introduction
2. 0:32Reactive Forms Overview
3. 2:23Pizza App Demonstration
4. 4:05Key Reactive Concepts
5. 5:05Setup and Module Importing
6. 6:59Form Building and HTML Binding
7. 10:29Using FormBuilder
8. 12:10Controlling the Form Hierarchy
9. 14:07Custom Form Validation
10. 18:22Handling Errors and State
11. 19:54Dynamic Form Arrays
12. 23:58Componentizing Forms
13. 25:27Custom Form Control UI
14. 28:37Control Value Accessor
15. 34:54Architecture and Conclusion

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