Vue Forms & Validation

Vue Forms & Validation

 Vue Forms Basics

Vue makes forms reactive by binding input fields directly to data.

Common Form Elements

• <input>

• <textarea>

• <select>

• <checkbox>

• <radio>

 Using v-model (Two-Way Binding)

•  Any change in input updates name
•  Any change in name updates input

 Handling Form Submit

• .prevent avoids page reload.

 Basic Form Validation (Manual)

Example: Required Field Validation

 Email Validation Example

 Validation Using Computed Properties

Better for performance and clean logic.

 Checkbox & Radio Validation

Checkbox

Radio

 Select Dropdown

 Dynamic Error Messages

 Native HTML Validation + Vue

You can combine both.

• Browser handles basic validation
• Vue handles custom rules

 Best Practices

•  Use v-model for all form fields
•  Use .prevent on submit
•  Prefer computed properties for validation
•  Show errors conditionally (v-if)
•  Keep validation logic readable

 When to Use Libraries?

For large apps, consider:

• Vuelidate

• vee-validate

(Useful for complex forms and rules)

 Summary Table

 Conclusion

Vue forms & validation allow you to build clean, reactive, and user-friendly forms.
Start with manual validation, then move to libraries for advanced use cases.