Q
How do you attach multiple callbacks to a jQuery promise?

Answer & Solution

Answer: Option B
Solution:
Multiple callbacks can be attached to a jQuery promise using multiple done() methods, each attaching a separate callback function.
Related Questions on Average

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

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

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

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

A). validateRule()

B). addRule()

C). addMethod()

D). validateMethod()

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

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()

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

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

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

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

A). done()

B). fail()

C). always()

D). then()