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

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 prevent form submission if validation fails on the client-side?

A). event.preventDefault()

B). form.submit()

C). validate()

D). validateForm()

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()

What is the benefit of validating form input on the client-side?

A). Reduced server load

B). Faster page rendering

C). Improved database performance

D). Enhanced security

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

A). Length limitation

B). Regex pattern matching

C). Presence validation

D). Numeric validation

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

A). HTML

B). CSS

C). JavaScript

D). PHP

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 event triggers client-side form validation?

A). onclick

B). onsubmit

C). onchange

D). onvalidate

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

How can client-side form validation enhance user experience?

A). By providing real-time feedback

B). By encrypting sensitive data

C). By executing server-side scripts

D). By storing data locally