oliverswitzer’s gists

oliverswitzer / module.js

Created February 24, 2014 18:54

Node.js Module Example!

	// dirListModule.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)

	module.exports = function filterDirFiles(pathSupplied, extFilter, callback) {
	function extension(element) {
	var extName = path.extname(element);
	return extName === '.' + extFilter;
	};

oliverswitzer / nonModuleDirList.js

Created February 24, 2014 19:01

An example of a script that will filter files with certain extensions in Node.js

	// 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 / callingANodeModule.js

Created February 24, 2014 19:08

Example of calling my own custom module in Node

	var dirListModule = require('./dirListModule.js')
	var dirPath = process.argv[2];
	var extFilter = process.argv[3];

	dirListModule(dirPath, extFilter, function(err, filteredList) {
	filteredList.forEach(function(value) {
	console.log(value);
	});
	});

oliverswitzer / barchart_update.rb

Created March 5, 2014 19:45

Updated working (sort of) barchart for BetaNYC Timeline Group!

oliverswitzer / example-data.json

Created March 27, 2014 20:59

The crappy JSON I got back from Mixpanel's API

	{"event":"first visit","properties":{"time":1389806707,"distinct_id":"14398a6d7eb77-0308ffb76-6e1a2776-384000-14398a6d7ec2b4","$browser":"Chrome","$city":"New York","$initial_referrer":"$direct","$initial_referring_domain":"$direct","$os":"Mac OS X","$region":"New York","date":{},"mp_country_code":"US","mp_lib":"web","url":"http://devolate.com/"}}
	{"event":"first visit","properties":{"time":1389806825,"distinct_id":"14398a8a47aa-094bd1e04-6e1a2776-384000-14398a8a47b421","$browser":"Chrome","$city":"New York","$initial_referrer":"$direct","$initial_referring_domain":"$direct","$os":"Mac OS X","$region":"New York","date":{},"mp_country_code":"US","mp_lib":"web","url":"http://devolate.com/"}}

oliverswitzer / mixpanel_api.js

Created March 27, 2014 21:14

A node script to get data from mixpanel API and output it to a CSV

	// 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 / includes_module.rb

Last active August 29, 2015 13:57

A simple gist demonstrating how Ruby looks up module methods when they've been included in a class

oliverswitzer / gist:7c1387e28e3a2791330fbf52fd109b16

Created April 4, 2019 18:06

POODR Chp. 9 to 9.3 Notes

	# 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 / bonus_merge_multiple_arrays.rb

Created May 20, 2020 19:30

Interview Cake Merge Multiple Sorted Arrays question

	# 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 / find_duplicate_BEAST_MODE.rb

Created July 9, 2020 20:12

	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

Oliver Switzer oliverswitzer