cyakimov

#Create a hash like {1=>2, 3=>4} from Array of values
arr = [1,2,3,4]
hash = Hash[*arr]

cyakimov

#["",nil,"something","another",123,""] => ["something","another",123]
array_to_filter.reject &:empty?

cyakimov

var isVisible = false;
function onVisible() {
	isVisible = true;
	jQuery.getScript("http://www.google-analytics.com/ga.js");
}

if ( document.webkitVisibilityState === undefined || document.webkitVisibilityState === "visible" ) {
	onVisible();
} else {
	jQuery.bind( "webkitvisibilitychange", function() {

cyakimov

yum groupinstall "Development Tools"

cyakimov

So, I'm setting up a new Ubuntu 10.04 server with nginx, RVM, Ruby-1.9.1, and Thin.

I got through installing nginx, RVM, ruby-1.9.1 without any problems. 
Ruby-1.9.1 was installed using 'rvm install x'; 
I don't have a system Ruby (Which is what I've been doing previously). 
I've also set the default ruby to 1.9.1 for myself and root.

I installed the thin gem using 'gem install thin'
I then installed thin to the system using 
  'thin install' 

cyakimov

//npm install b64url
//A signed_request for testing:
//WGvK-mUKB_Utg0l8gSPvf6smzacp46977pTtcRx0puE.eyJhbGdvcml0aG0iOiJITUFDLVNIQTI1NiIsImV4cGlyZXMiOjEyOTI4MjEyMDAsImlzc3VlZF9hdCI6MTI5MjgxNDgyMCwib2F1dGhfdG9rZW4iOiIxNTI1NDk2ODQ3NzczMDJ8Mi5ZV2NxV2k2T0k0U0h4Y2JwTWJRaDdBX18uMzYwMC4xMjkyODIxMjAwLTcyMTU5OTQ3NnxQaDRmb2t6S1IyamozQWlxVldqNXp2cTBmeFEiLCJ1c2VyIjp7ImxvY2FsZSI6ImVuX0dCIiwiY291bnRyeSI6ImF1In0sInVzZXJfaWQiOiI3MjE1OTk0NzYifQ

function parse_signed_request(signed_request, secret) {
    encoded_data = signed_request.split('.',2);
    // decode the data
    sig = encoded_data[0];
    json = base64url.decode(encoded_data[1]);
    data = JSON.parse(json); // ERROR Occurs Here!

cyakimov

#!/bin/bash

# nodejs - Startup script for node.js server

# chkconfig: 35 85 15
# description: node is an event-based web server.
# processname: node
# server: /path/to/your/node/file.js
# pidfile: /var/run/nodejs.pid
#

cyakimov

<meta http-equiv="X-UA-Compatible" content="IE=Edge,chrome=1" />
<!--[if lt IE 9]>
  <script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->

cyakimov

yum groupinstall "Development Tools"

#get the lastest in nodejs.org
wget http://nodejs.org/dist/node-v0.4.11.tar.gz

tar xvzf node-v0.4.11.tar.gz

cd node-v0.4.11

./configure && make && make install

cyakimov

//http://stackoverflow.com/questions/149055/how-can-i-format-numbers-as-money-in-javascript
Number.prototype.formatMoney = function(c, d, t){
    var n = this, c = isNaN(c = Math.abs(c)) ? 2 : c, d = d == undefined ? "," : d, t = t == undefined ? "." : t, s = n < 0 ? "-" : "", i = parseInt(n = Math.abs(+n || 0).toFixed(c)) + "", j = (j = i.length) > 3 ? j % 3 : 0;
    return s + (j ? i.substr(0, j) + t : "") + i.substr(j).replace(/(\d{3})(?=\d)/g, "$1" + t) + (c ? d + Math.abs(n - i).toFixed(c).slice(2) : "");
};

function animateNumberChange(el,number,callback, interval, relax_interval)
{
    var currentVal = el.data("value");
    var endVal = number;