Mastering complex reactivity with template-driven forms and Signals
summary
Shows how Angular Signals plus a small view‑model layer turn template‑driven forms into truly reactive, unidirectional workflows, replacing banana‑in‑a‑box two‑way binding and most imperative valueChanges wiring. Uses a custom form directive, NG async validators wired to Vest model suites, and computed signals to expose clean VM flags (disabled, showOtherGender, dirty). Claims reduced boilerplate to almost nothing, reports six months of use at DHL with better productivity, and an open‑source StackBlitz demo (API hiccup aside).
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chapters (13)
- 0:00Complex form struggles
- 1:06Talk overview
- 2:29Signals as reactive primitive
- 6:25View models and their use
- 8:54Reactive forms limitations
- 13:27Template driven forms basics
- 20:13Unidirectional forms with signals
- 24:32Imperative to declarative logic
- 26:42Form validation challenges
- 28:06Vest framework validations
- 32:26Live form demo
- 35:56Open source form components
- 39:34Q&A
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