es6-promises

Question 1

What are the three states a Promise can be in?

Answer 1

pending: initial state, neither fulfilled nor rejected.
fulfilled: meaning that the operation was completed successfully.
rejected: meaning that the operation failed.

Question 2

How do you handle the fulfillment of a Promise?

Answer 2

call the Promise.then() method with a function that will handle the fulfillment value
p.then(onFulfilled[, onRejected]);

Question 3

How do you handle the rejection of a Promise?

Answer 3

call the then() method with an argument of a function that will handle the res
or catch() method.