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
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
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 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
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
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
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
Which jQuery method is used to chain multiple asynchronous operations?
A). done()
B). fail()
C). then()
D). always()
Which method is used to delegate an event handler in jQuery?
A). .on()
B). .delegate()
C). .bind()
D). .attach()
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