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

How can JavaScript be used to validate form input on the client-side?

A). By accessing form elements and checking their values

B). By submitting form data to the server for validation

C). By storing validation rules in the HTML markup

D). By encrypting form data before submission

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

Which method is commonly used to trigger client-side form validation when a form is submitted?

A). validateForm()

B). event.preventDefault()

C). form.submit()

D). validate()

How does client-side form validation improve data accuracy?

A). By identifying errors before submission

B). By encrypting data during transmission

C). By validating server responses

D). By storing data securely in the database

Which event triggers client-side form validation?

A). onclick

B). onsubmit

C). onchange

D). onvalidate

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

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

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