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
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 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()
Which programming language is commonly used to implement client-side form validation?
A). HTML
B). CSS
C). JavaScript
D). PHP
Which method is used to display error messages in client-side form validation?
A). document.getElementById()
B). console.log()
C). alert()
D). innerHTML
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 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
Which attribute is commonly used to specify validation rules in HTML form elements?
A). validate
B). required
C). validation
D). validate-rule
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