Billy Ma billyma128

Virtual Hosts on nginx (CSC309)

When hosting our web applications, we often have one public IP address (i.e., an IP address visible to the outside world) using which we want to host multiple web apps. For example, one may wants to host three different web apps respectively for example1.com, example2.com, and example1.com/images on the same machine using a single IP address.

How can we do that? Well, the good news is Internet browsers

The introduction to Reactive Programming you've been missing

(by @andrestaltz)

This tutorial as a series of videos

If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.

git stash用于保存和恢复工作进度

git stash

保存当前的工作进度。会分别对暂存区和工作区的状态进行保存
git stash save "message..."

这条命令实际上是第一条 git stash 命令的完整版

Remove MySQL completely

Open the Terminal
Use mysqldump to backup your databases
Check for MySQL processes with: ps -ax | grep mysql
Stop and kill any MySQL processes
Analyze MySQL on HomeBrew:
```
brew remove mysql
```

Observable React elements with RxJS

Note: if you want to skip history behind this, and just looking for final result see: rx-react-container

When I just started using RxJS with React, I was subscribing to observables in componentDidMount and disposing subscriptions at componentWillUnmount.

But, soon I realised that it is not fun to do all that subscriptions(that are just updating property in component state) manually, and written mixin for this...

Later I have rewritten it as "high order component" and added possibility to pass also obsarvers that will receive events from component.

Option 1: Command-line download extension as zip and extract

extension_id=jifpbeccnghkjeaalbbjmodiffmgedin   # change this ID
curl -L -o "$extension_id.zip" "https://clients2.google.com/service/update2/crx?response=redirect&os=mac&arch=x86-64&nacl_arch=x86-64&prod=chromecrx&prodchannel=stable&prodversion=44.0.2403.130&x=id%3D$extension_id%26uc" 
unzip -d "$extension_id-source" "$extension_id.zip"

Thx to crxviewer for the magic download URL.

	AZHU.storage = {
	save : function(key, jsonData, expirationMin){
	if (!Modernizr.localstorage){return false;}
	var expirationMS = expirationMin * 60 * 1000;
	var record = {value: JSON.stringify(jsonData), timestamp: new Date().getTime() + expirationMS}
	localStorage.setItem(key, JSON.stringify(record));
	return jsonData;
	},
	load : function(key){
	if (!Modernizr.localstorage){return false;}

	<!DOCTYPE html>
	<html>
	<head>
	<meta charset=utf-8 />
	<title>A Graph</title>
	<!--[if IE]>
	<script src="http://html5shiv.googlecode.com/svn/trunk/html5.js"></script>
	<![endif]-->
	<style>
	article, aside, figure, footer, header, hgroup,

	// <script src="angular.min.js"></script>

	(function(name, factory) {
	// our basic IO module system that stores every module on modules with the "file" namespace
	// please use something like browserify rather than rolling your own like this
	window.modules = window.modules \|\| {};
	window.require = window.require \|\| function require(name) { return window.modules[name] \|\| window[name]; };
	var exports = {}; factory(exports, window.require);
	window.modules[name] = exports;
	}('TodoService', function(exports, require) {

	quicksort :: (Ord a) => [a] -> [a]
	quicksort [] = []
	quicksort (x:xs) =
	let smallerSorted = quicksort (filter (<=x) xs)
	biggerSorted = quicksort (filter (>x) xs)
	in smallerSorted ++ [x] ++ biggerSorted