Promise.Resolver Class
Represents an asynchronous operation. Provides a
standard API for subscribing to the moment that the operation completes either
successfully (fulfill()) or unsuccessfully (reject()).
Constructor
Promise.Resolver
-
promise
Parameters:
-
promisePromiseThe promise instance this resolver will be handling
Item Index
Properties
- promise deprecated
Methods
fulfill
-
value
Resolves the promise, signaling successful completion of the
represented operation. All "onFulfilled" subscriptions are executed and passed
the value provided to this method. After calling fulfill(), reject() and
notify() are disabled.
Parameters:
-
valueAnyValue to pass along to the "onFulfilled" subscribers
getStatus
()
String
deprecated
Returns the current status of the Resolver as a string "pending", "fulfilled", or "rejected".
Returns:
reject
-
value
Resolves the promise, signaling unsuccessful completion of the
represented operation. All "onRejected" subscriptions are executed with
the value provided to this method. After calling reject(), resolve()
and notify() are disabled.
Parameters:
-
valueAnyValue to pass along to the "reject" subscribers
then
-
[callback] -
[errback]
Schedule execution of a callback to either or both of "resolve" and
"reject" resolutions for the Resolver. The callbacks
are wrapped in a new Resolver and that Resolver's corresponding promise
is returned. This allows operation chaining ala
functionA().then(functionB).then(functionC) where functionA returns
a promise, and functionB and functionC may return promises.
Parameters:
Returns:
The promise of a new Resolver wrapping the resolution of either "resolve" or "reject" callback