Q
Which validation technique ensures that a required field is not left empty?

Answer & Solution

Answer: Option C
Solution:
Presence validation, also known as required field validation, ensures that a field must be filled out before the form can be submitted.
Related Questions on Average

What is the purpose of displaying error messages in client-side form validation?

A). To guide users through the form

B). To execute server-side scripts

C). To encrypt form data

D). To validate user credentials

How does client-side form validation contribute to better error handling?

A). By identifying errors before form submission

B). By encrypting form data

C). By storing errors in the database

D). By executing server-side scripts for error correction

Which method prevents form submission if validation fails on the client-side?

A). submitHandler()

B). onsubmit event

C). validate() method

D). preventDefault() method

What is the role of CSS in client-side form validation?

A). To style error messages

B). To validate form input

C). To execute validation logic

D). To intercept form submissions

Which method is commonly used to prevent form submission if validation fails on the client-side?

A). event.preventDefault()

B). form.submit()

C). validate()

D). validateForm()

Which programming language is commonly used to implement client-side form validation?

A). HTML

B). CSS

C). JavaScript

D). PHP

What is the primary purpose of client-side form validation?

A). Enhance server performance

B). Improve user experience

C). Secure data transmission

D). Validate server responses

Which attribute is commonly used to specify validation rules in HTML form elements?

A). validate

B). required

C). validation

D). validate-rule

What is the advantage of using client-side form validation over server-side validation?

A). Immediate feedback to users

B). Access to server resources

C). Simplified form structure

D). Increased server load

What is the purpose of the validate() method in client-side form validation libraries?

A). To trigger form submission

B). To validate form input

C). To encrypt form data

D). To execute server-side scripts for validation