Exploring advanced jQuery topics such as deferred objects, promises, and event delegation Mockest | JQuery

11.

Which method is used to delegate an event handler in jQuery?

A). .on() B). .delegate() C). .bind() D). .attach()

12.

How does event delegation handle dynamically added elements?

A). By re-attaching event handlers B). By attaching event handlers to the parent element C). By using the .bind() method D). By using the .on() method with a selector

Answer & Solution Discuss in Board

13.

What is a promise in jQuery?

A). An object that represents a completed task B). An object that represents a pending task C). An object that represents an asynchronous operation D). An object that represents a synchronous operation

Answer & Solution Discuss in Board

14.

Which jQuery method is used to chain multiple asynchronous operations?

A). done() B). fail() C). then() D). always()

Answer & Solution Discuss in Board

15.

How can you reject a deferred object in jQuery?

A). Using the reject() method B). Using the resolve() method C). Using the done() method D). Using the always() method

Answer & Solution Discuss in Board

16.

How can you ensure that a callback runs only once, even if the promise is resolved multiple times?

A). Using the done() method B). Using the fail() method C). Using the once() method D). Using the then() method

Answer & Solution Discuss in Board

17.

What does the promise() method return in jQuery?

A). A new deferred object B). A new promise object C). A new callback function D). A new event handler

Answer & Solution Discuss in Board

18.

How can developers handle multiple asynchronous operations concurrently in jQuery?

A). Using the done() method B). Using the when() method C). Using the fail() method D). Using the always() method

Answer & Solution Discuss in Board

19.

How can you handle errors in an asynchronous operation in jQuery?

A). Using the done() method B). Using the fail() method C). Using the always() method D). Using the then() method

Answer & Solution Discuss in Board

20.

Which method allows you to specify multiple callbacks for different outcomes of a promise in jQuery?

A). done() B). fail() C). always() D). then()

Answer & Solution Discuss in Board

Exploring advanced jQuery topics such as deferred objects, promises, and event delegation Mocktest

Answer & Solution

Answer & Solution

Answer & Solution

Answer & Solution

Answer & Solution

Answer & Solution

Answer & Solution

Answer & Solution

Answer & Solution

Answer & Solution

COMPANY

Products

OTHERS

Partner