rishabhmhjn

function calcStandardDeviation(arr) {
  // var arr = [23, 37, 45, 49, 56, 63, 63, 70, 72, 82];
  var count = arr.length

  var mean = arr.reduce(function(total, num) {
    total += num;
    return total;
  }, 0) / count;

  var variance = arr.reduce(function(total, num) {

rishabhmhjn

HTTP Verb   Path              Controller#Action   Used for
GET         /photos           photos#index        display a list of all photos
GET         /photos/new       photos#new          return an HTML form for creating a new photo
POST        /photos           photos#create       create a new photo
GET         /photos/:id       photos#show         display a specific photo
GET         /photos/:id/edit  photos#edit         return an HTML form for editing a photo
PATCH/PUT   /photos/:id       photos#update       update a specific photo
DELETE /photos/:id photos#destroy delete a specific photo

rishabhmhjn

# Getting started with Ruby
# http://guides.rubyonrails.org/getting_started.html

# Install ruby
curl -L https://get.rvm.io | bash -s stable --ruby

# Install ruby 1.8.7, since rvm installs 1.8.7 as default
rvm install 1.9.3
rvm --default use 1.9.3

rishabhmhjn

var ItemModel = Backbone.Model.extend({

    defaults : {
      "item_id" : 0,
      "item_content" : "this is a content"
    }

  });

var ItemColl = Backbone.Collection.extend({

rishabhmhjn

var redisConfig = {
  "host" : "localhost",
  "port" : "6379",
  "maxConnections" : 10,
  "minConnections" : 5,
  "debug" : true
}

var redis = require("redis");

rishabhmhjn

vi ~/.bashrc

# [add the following]
# -------------------------------------------------------------
. ~/.nvm/nvm.sh && nvm use default
# -------------------------------------------------------------

mkdir ~/src
cd !$

rishabhmhjn

var Person = function () {
  this.fname = 'douglas';
  this.lname = 'crockford';
};

var Student = function() {
  return this;
};

Student.prototype = new Person();

rishabhmhjn

var MyArray = function() { return this; } ;
MyArray.prototype = new Array();
MyArray.prototype.constructor = MyArray; // http://stackoverflow.com/a/10430875/842214
 
Object.defineProperty(MyArray.prototype, 'myLast', (function () {
    return {
      configurable : true,
      enumerable : true,
      get : function () {
        return this[this.length - 1];

rishabhmhjn

Host app-nat
  Hostname app-nat.example.com
  User app-nat-user
  IdentityFile ~/.ssh/app-nat-id_rsa

Host app-remote
  ProxyCommand ssh -q app-nat nc app-remote.example.com 22
  User app-remote-user
  IdentityFile ~/.ssh/app-remote-id_rsa

rishabhmhjn

(function() {

  // angular.module('TwttrMaxlengthDirectiveDemo', ['ngMaterial'])
  //   .constant('twttr', twttr) // https://github.com/twitter/twitter-text/tree/master/js
  //   .directive('twttrMaxlength', TwttrMaxlengthDirective);

  TwttrMaxlengthDirective.$inject = ['$animate', 'twttr'];

  function TwttrMaxlengthDirective($animate, twttr) {
    return {