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