A Promise of a value. A Promise represents a future value. It handles the
interactions for asynchron
A Deferred Promise resolution. Instances of this class can be used to create a
Promise that can be r
Promise failure exception for a collection of failed Promises.
Promise factory to create Deferred and Promise objects. Instances of this class
can be used to creat
Abstract Promise implementation. This class is not used directly by clients.
Clients should use Prom