Angular - Template-Driven Forms
You want to create a form that requires a user to enter a non-empty email and password. Which Angular approach best ensures the form is valid only when both fields are filled?
You want to create a form that requires a user to enter a non-empty email and password. Which Angular approach best ensures the form is valid only when both fields are filled?
hard🚀 Application Q15 of 15
Step-by-Step Solution
Solution:
Step 1: Understand Angular validation
Validators.required ensures a control is not empty and marks form invalid if empty.Step 2: Apply validators to both email and password controls
Adding Validators.required to both controls enforces non-empty input before form is valid.Step 3: Compare other options
Manual checks or missing validators do not enforce form validity automatically.Final Answer:
Use FormGroup with FormControls and add Validators.required to each control. -> Option BQuick Check:
Validators.required on controls = form valid only if filled [OK]
Quick Trick: Add Validators.required to controls for mandatory fields [OK]
Common Mistakes:
MISTAKES- Skipping validators and relying on manual checks
- Validating only one field
- Assuming empty controls are valid
Master "Template-Driven Forms" in Angular
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