Promise

Implementation of javascript Promise/A+ standard, plus .finally and onUnhandledRejection.

Nothing more. Clean and tiny (4.5 KB Only).

Use it by: npm install all-promise, or include browser-bundles/promise.min.js.

Promise API

Constructor

new Promise(fn: function(resolve, reject))

Promise Instance Methods

promise.then(onFulfilled: null|function(value), onRejected: null|function(reason))

promise.catch(onRejected: function(reason))

promise.finally(onRejected: function(valueOrReason))

Static Methods

Promise.resolve(value: *)

Promise.reject(reason: *)

Promise.all(promises: Array.<Promise | Thenable>)

Promise.race(promises: Array.<Promise | Thenable>)

Unhandled Promise Rejection

Promise.onUnhandledRejection = function (reason) {
    // ... handle your unhandled rejection
};