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 is used to define custom validation rules in jQuery?
A). validateRule()
B). addRule()
C). addMethod()
D). validateMethod()
Which jQuery method is used to chain multiple asynchronous operations?
A). done()
B). fail()
C). then()
D). always()
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
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 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
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
Which method is used to delegate an event handler in jQuery?
A). .on()
B). .delegate()
C). .bind()
D). .attach()
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 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