Reactive Forms Demistified
summary
Workshop shows concrete claims and working code: Reactive Forms use formBuilder.group to build FormGroup/FormArray structures, validators run both on controls and on the group for things like password confirmation, and valueChanges drives live counters and UI state. Demos include a Twitter box with max length and disabled submit, a custom group validator for matching passwords, and an zippopotamas async validator calling HTTP to mark postcode delivery as pending/invalid. Laptops, live challenges and solutions prove what tools and checks actually work.
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chapters (11)
- 0:00Workshop introduction
- 3:23Importance of forms
- 10:35Bad form practices
- 18:03Reactive forms overview
- 21:36Core building blocks
- 28:34Form builder utilities
- 30:38Building a basic control
- 44:46Understanding form states
- 53:43Validators and challenges
- 1:10:50Form groups and validation
- 1:25:21Custom and async validation
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