Answer & Solution
Answer: Option C
Solution:
A promise in jQuery represents an asynchronous operation, providing a mechanism to handle the eventual completion or failure of the operation.
Q
What is a promise in jQuery?
Related Questions on Average
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 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
Which method is used to delegate an event handler in jQuery?
A). .on()
B). .delegate()
C). .bind()
D). .attach()
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 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 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 method is used to define custom validation rules in jQuery?
A). validateRule()
B). addRule()
C). addMethod()
D). validateMethod()
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 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
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