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Landing Practice UI Practice API Fullstack

107 challenges

Form Validation

Form Validation

Test HTML5 form validation

Required Fields

These fields must be filled to submit

Username (required):

3-20 characters, alphanumeric and underscores only

Email (required):

Password (required):

Min 8 chars, must include uppercase, lowercase, and number

Optional Fields with Constraints

These fields have validation rules but are not required

Age (18-120):

Website (URL):

Actions

Submit or reset the form

Testing Tips

Automation hints

✓ Test HTML5 validation: #username requires 3-20 alphanumeric chars, #password needs uppercase+lowercase+number
✓ Verify #email field validates email format, #website validates URL format
✓ Check #age accepts only values 18-120, test boundary values
✓ Use #submit-btn to trigger validation, #reset-btn to clear form
✓ Verify #success-message appears only after all validations pass

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