Q
How can developers create a custom validation rule for checking if a field value is unique using jQuery?

Answer & Solution

Answer: Option C
Solution:
Developers can create a custom validation rule for checking if a field value is unique by creating a custom validation method that performs an AJAX request to validate the uniqueness.
Related Questions on Average

Which option allows developers to specify custom validation error classes in jQuery?

A). A. errorClass attribute in HTML

B). B. customErrorClass option in the jQuery Validation Plugin

C). C. errorClass option in the jQuery Validation Plugin

D). D. customClass() method

Which function is used to add a custom validation method in jQuery?

A). A. addRule()

B). B. addValidation()

C). C. addMethod()

D). D. validateMethod()

What is the purpose of the remote method in jQuery validation?

A). A. To validate input against a server-side script

B). B. To trigger form submission

C). C. To customize error messages

D). D. To display error messages

How can developers customize the appearance of error messages displayed by the jQuery Validation Plugin?

A). A. By using CSS to style error message elements

B). B. By modifying the errorMessages() method

C). C. By setting the displayErrorMessages option in the jQuery Validation Plugin

D). D. By displaying a generic error message

Which option allows developers to specify custom error messages for validation rules in jQuery?

A). A. customMessages option in the jQuery Validation Plugin

B). B. errorMessages() method

C). C. messages option in the jQuery Validation Plugin

D). D. customError() method

How can developers enforce a specific format for phone numbers using jQuery?

A). A. By setting the type attribute to 'tel' on the phone number field

B). B. By using the required attribute on the phone number field

C). C. By creating a custom validation rule with a regular expression

D). D. By displaying a generic error message

What is the purpose of customizing validation rules in jQuery?

A). A. To enhance server performance

B). B. To tailor validation to specific input requirements

C). C. To increase server load

D). D. To minimize user experience

How can developers ensure that email addresses are validated correctly using jQuery?

A). A. By setting the type attribute to 'email' on the email field

B). B. By using the required attribute on the email field

C). C. By creating a custom validation rule with a regular expression

D). D. By displaying a generic error message

What is the purpose of customizing error messages in jQuery?

A). A. To confuse users with misleading error messages

B). B. To provide clear instructions for correcting input errors

C). C. To slow down form submission

D). D. To reduce server load

How can developers ensure that error messages are displayed in the correct language using jQuery?

A). A. By specifying language attribute in HTML

B). B. By including language-specific JavaScript files

C). C. By using the translate() function

D). D. By setting the language option in the jQuery Validation Plugin