Zhenyang Hua zhenyanghua

###Pre-requisites:

Any version of Windows newer than XP or Server 2003.
A good text editor. I recommend Sublime Text 2.
If you use Sublime Text, you can get very helpful syntax highlighting while editing Apache Conf files by installing Package Control. Once fully installed and SublimeText is restarted, CTRL+SHIFT+P -> Install Package -> ApachConf (enter).
This assumes you have a public domain pointing to your WAN IP. Figure that out from whatismyip.com. If you purchase a domain and use a CNAME or A-record, it can take some time for the DNS changes to propagate. I've seen anywhere from 15 mins to several hours.
Within your router, you must forward port 80 to your LAN IP which hosts Apache.

	;(function(exports) {

	// export the class if we are in a Node-like system.
	if (typeof module === 'object' && module.exports === exports)
	exports = module.exports = SemVer;

	// The debug function is excluded entirely from the minified version.

	// Note: this is the semver.org version of the spec that it implements
	// Not necessarily the package version of this code.

	const Observable = Rx.Observable;

	const toggleButton = document.querySelector('#toggle');

	const toggleClick$ = Observable.fromEvent(toggleButton, 'click');
	const interval$ = Observable.interval(1000);

	const toggle$ = toggleClick$
	.startWith(false)
	.scan((acc, curr)=> !acc); //toggles true/false