oliverswitzer

RSpec.configure do |config|
  # Use color in STDOUT
  config.color_enabled = true

  # Use color not only in STDOUT but also in pagers and files
  config.tty = true

  # Use the specified formatter
  config.formatter = :documentation # :progress, :html, :textmate
end

oliverswitzer

def fibo_finder
  if n < 2
    n
  else
    fibo_finder(n-1) + fibo_finder(n-2)
  end
end

oliverswitzer

> typeof(3)
'number'
> typeof(3) === typeof(4.32)
true
> 5/0
Infinity
> 3/"bob"
NaN
> NaN === NaN
false

oliverswitzer

What does the following code evaluate to?
var first_name = function (name) {
  return name;
}
first_name("bob");
--> 'bob'
 
What does the following code evaluate to?
function add(x, y) {
  return x + y;

oliverswitzer

What does the following code print to the console?
var person = {
  name: "Joe Camel",
  age: 42,
  status: "dead"
}
console.log(typeof person);
--> Object {name: "Joe Camel", age: 42, status: "dead"}

 

oliverswitzer

// mixpanel_export.js


// node modules
http = require('http');
Mixpanel = require('mixpanel');
md5 = require('MD5');
jsoncsv = require('jsoncsv');
fs = require('fs');
stringify = require('csv-stringify');

oliverswitzer

# Intro

Writing changeable code: three different skills
- 1. understand OO design. Code that is easy to change IS well designed.
- 2. skilled at refactoring. Quote from Fowler 
--> also maybe insert quote from Kent Beck:
 "make the change easy (warning: this may be hard), then make the easy change"
- refactoring is how you morph code to accommodate new requirements. Prefactor vs refactor?
- 3. High value tests! 
- Good tests don't need to be changed when you refactor.

oliverswitzer

# In order to win the prize for most cookies sold, my friend Alice and I are going to merge our Girl Scout Cookies orders and enter as one unit.
#
#  Each order is represented by an "order id" (an integer).
#
#  We have our lists of orders sorted numerically already, in arrays. Write a method to merge our arrays of orders into one sorted array.
#
#  For example:
#
# my_array     = [3, 4, 6, 10, 11, 15]
# alices_array = [1, 5, 8, 12, 14, 19]

oliverswitzer

// asynchDirList.js

var fs = require('fs');  //require node filesystem module
var path = require('path'); //require node path module (a couple of tools for reading path names)

var pathSupplied = process.argv[2];
var extFilter = process.argv[3];

function extension(element) {
  var extName = path.extname(element);

oliverswitzer

def find_duplicate(int_array)
  current_position = int_array[-1]

  # Step 1: Get our cursor to the end of the int array list, so that we
  # are guaranteed to be in a loop when we try to find the loop length
  (int_array.length - 1).times do
    current_position = int_array[current_position - 1]
  end

  loop_start_position = current_position