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

1.

What is a deferred object in jQuery?

A). An object that stores HTML elements B). An object that represents a task that will finish in the future C). An object that handles CSS styles D). An object that manages event listeners

Answer & Solution Discuss in Board

2.

Which method is used to define custom validation rules in jQuery?

A). validateRule() B). addRule() C). addMethod() D). validateMethod()

Answer & Solution Discuss in Board

3.

How can you create a promise from a deferred object in jQuery?

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

Answer & Solution Discuss in Board

4.

What is the purpose of the done() method in jQuery promises?

A). To handle failed operations B). To handle completed operations C). To handle pending operations D). To create a new deferred object

Answer & Solution Discuss in Board

5.

How do you attach multiple callbacks to a jQuery promise?

A). Using multiple then() methods B). Using multiple done() methods C). Using multiple fail() methods D). Using multiple always() methods

Answer & Solution Discuss in Board

6.

Which jQuery method is used to handle both success and failure cases of a promise?

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

Answer & Solution Discuss in Board

7.

What does the fail() method do in jQuery promises?

A). Attaches a callback for when the promise is rejected B). Attaches a callback for when the promise is resolved C). Attaches a callback for when the promise is pending D). Attaches a callback for when the promise is created

Answer & Solution Discuss in Board

8.

Which method allows you to specify a callback that is executed regardless of the promise's outcome?

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

Answer & Solution Discuss in Board

9.

What is event delegation in jQuery?

A). Attaching event handlers to dynamically created elements B). Attaching event handlers to static elements C). Attaching event handlers to parent elements D). Attaching event handlers to all elements

Answer & Solution Discuss in Board

10.

How can event delegation improve performance?

A). By reducing the number of event handlers B). By increasing the number of event handlers C). By attaching handlers directly to elements D). By using inline event handlers

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