Nils Wloka nilswloka

This article has been given a more permanent home on my blog. Also, since it was first written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.

You're Missing the Point of Promises

Promises are a software abstraction that makes working with asynchronous operations much more pleasant. In the most basic definition, your code will move from continuation-passing style:

getTweetsFor("domenic", function (err, results) {
 // the rest of your code goes here.

	<html>
	<head>
	<title>Flapjax Demo: Time 1</title>
	</head>
	<p>The time is <span class="fixedBlock"><span id="timer">not initialized</span></span>.</p>
	<p>The time in seconds is <span class="fixedBlock"><span id="timer2">not initialized</span></span>.</p>
	<script type="text/javascript" src="main.js"></script>
	</body>
	</html>

	(ns hammock-cafe.ui.history
	(:require [io.pedestal.app.protocols :as p]
	[io.pedestal.app.util.log :as log]
	[io.pedestal.app.messages :as msg]))

	(def last-page (atom nil))

	(def dispatchers (atom {}))

	(defn navigate [token]

	(ns foobar.components
	(:require [com.stuartsierra.component :as component]
	[compojure.api.sweet :refer :all]))

	(defmethod compojure.api.meta/restructure-param :components
	[_ components acc]
	(update-in acc [:letks] into [components `(::components ~'+compojure-api-request+)]))

	(defn wrap-components [handler components]
	(fn [req]

	Disclaimer: The instructions are the collective efforts from a few places online.
	Nothing here is my original. But I want to put them together in one place to save people from spending the same time as I did.

	First off, bundle.
	==================

	1. cd to the project directory
	2. Start the react-native packager if not started
	3. Download the bundle to the asset folder:
	curl "http://localhost:8081/index.android.bundle?platform=android" -o "android/app/src/main/assets/index.android.bundle"