饭食钢 SiZapPaaiGwat

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written, the development of the Promises/A+ specification has made the original emphasis on Promises/A seem somewhat outdated.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.

XWindows for Headless Selenium

How to set up a Headless Selenium Testing environment for CentOS 6.3.

On your CentOS 6.3 host

Follow these steps to set up a CentOS 6.3 host to run headless Selenium tests with Firefox.

How to install PhantomJS on Ubuntu

Version: 1.9.8

Platform: x86_64

First, install or update to the latest system software.

sudo apt-get update
sudo apt-get install build-essential chrpath libssl-dev libxft-dev

Interesting part (unmounting & API) is at the end if you're not interested in the rest =).

Stress Tests

This animation proposal is just an attempt. In case it doesn't work out, I've gathered a few examples that can test the power of a future animation system.

Parent is an infinitely spinning ball, and has a child ball that is also spinning. Clicking on the parent causes child to reverse spinning direction. This tests the ability of the animation system to compose animation, not in the sense of applying multiple interpolations to one or more variables passed onto the child (this should be trivial), but in the sense that the parent's constantly updating at the same time as the child, and has to ensure that it passes the animation commands correctly to it. This also tests that we can still intercept these animations (the clicking) and immediately change their configuration instead of queueing them.
Typing letters and let them fly in concurrently. This tests concurrency, coordination of an array of ch

	<!DOCTYPE HTML>
	<html>
	<head>
	<meta charset="utf-8" />

	<!--允许全屏-->
	<meta content="yes" name="apple-mobile-web-app-capable"/>
	<meta content="yes" name="apple-touch-fullscreen"/>

	<!--禁止电话号码和邮箱识别-->

	<?xml version="1.0" encoding="UTF-8"?>
	<CORSConfiguration xmlns="http://s3.amazonaws.com/doc/2006-03-01/">
	<CORSRule>
	<AllowedOrigin>*</AllowedOrigin>
	<AllowedMethod>GET</AllowedMethod>
	<AllowedMethod>POST</AllowedMethod>
	<AllowedMethod>PUT</AllowedMethod>
	<MaxAgeSeconds>3000</MaxAgeSeconds>
	<AllowedHeader>*</AllowedHeader>
	</CORSRule>

	var HighResolutionTimer = window.HighResolutionTimer = window.HighResolutionTimer \|\| (function() {

	var HighResolutionTimer = function(options) {
	this.timer = false;

	this.total_ticks = 0;

	this.start_time = undefined;
	this.current_time = undefined;

	tim@touchsmart:~/Code$ nvm use v0.11.2-generators
	Now using node v0.11.2-generators
	tim@touchsmart:~/Code$ node --harmony testgen.js
	<Buffer 76 61 72 20 66 73 20 3d 20 72 65 71 75 69 72 65 28 27 66 73 27 29 3b 0a 66 75 6e 63 74 69 6f 6e 20 72 65 61 64 46 69 6c 65 28 70 61 74 68 2c 20 65 6e 63 ...>
	Sleeping for 2000ms...
	Done

	import android.annotation.SuppressLint;
	import android.app.Activity;
	import android.os.Bundle;
	import android.webkit.WebChromeClient;
	import android.webkit.WebSettings;
	import android.webkit.WebView;
	import android.webkit.WebViewClient;

	public class MainActivity extends Activity {
	private WebView webview;

	var fs = require('fs');
	var readline = require('readline');
	var stream = require('stream');

	var inputfile = "pathtofile.txt";
	var outputfile = "pathtooutputfile.json";

	var instream = fs.createReadStream(inputfile);
	var outstream = fs.createWriteStream(outputfile, {'flags': 'a'});
	outstream.readable = true;