Function

defer (label) Object public

Defined in node_modules/rsvp/lib/rsvp/defer.js:3

label

String

optional string for labeling the promise. Useful for tooling.

returns

Object

defer returns an object similar to jQuery's $.Deferred. defer should be used when porting over code reliant on $.Deferred's interface. New code should use the Promise constructor instead.

The object returned from defer is a plain object with three properties:

• promise - an Promise.
• reject - a function that causes the promise property on this object to become rejected
• resolve - a function that causes the promise property on this object to become fulfilled.

Example:

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 let deferred = defer();

 deferred.resolve("Success!");

 deferred.promise.then(function(value){
   // value here is "Success!"
 });