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
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 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
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 jQuery method is used to handle both success and failure cases of a promise?
A). done()
B). fail()
C). always()
D). then()
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 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
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
Which method is used to delegate an event handler in jQuery?
A). .on()
B). .delegate()
C). .bind()
D). .attach()
Which jQuery method is used to chain multiple asynchronous operations?
A). done()
B). fail()
C). then()
D). always()