josh-works

D3 stands for Data Driven Documents, and it's the coolest thing ever.

Check out a few examples:

• Animated, interactive curves(dynamic)
• OMG Particles II(dynamic)
• simple map of the us(static) <= very little code
• Radial Dendrogram(static)
• circle wave(dynamic)
• Force-directed tree(dynamic) <= super cool

josh-works

Learning is cool.

Learning how to learn is a super power.

Lets look at the lense of learning a new language:

At the most tactical level, we would be studying the language itself. Reading a children's book in the target language, or making and studying flashcards.

At a higher level, we would be considering how we can best study the language. Flash cards? Reading children's books in the foreign language? Passive or active learning? etc.

josh-works

Follow these instructions to start using Zsh:

https://github.com/robbyrussell/oh-my-zsh

I'm using the Agnoster theme:

https://github.com/agnoster/agnoster-zsh-theme

You'll have to install the Patched Solarized Fonts:

josh-works

in .psqlrc, I've got:

\set PROMPT1 '\n%[%033[1;31;40m%] ➤ %[%033[32m%]psql%033[36m%]%/ %[%033[K%]%[%033[0m%]\n\n%[%033[1;33m%]%#%[%033[0m%] '
\set PROMPT2 '%[%033[1;33m%]%##%[%033[0m%] '
\timing
\set HISTSIZE 2000


\set alldata 'SELECT * FROM '

josh-works

On cleaner controllers

A few days ago, I worked on a project that was mostly about serving up basic store data (modeled after Etsy) to an API.

We had a few dozen end-points, and all responses were in JSON.

Most of the action happened inside of our controllers, and as you might imagine, our routes.rb file was bananas.

One of the instructors made an exceptionally simple suggestion, I was embarrassed to not have seen it.

josh-works

Better workflow (leads to) better questions (leads to) better jobs

We'll cover two things:

1. Have a great workflow
2. Ask great questions

Workflow

From Regis, who will cover the "workflow" portion of the spike

josh-works

On Learning

topics: {
      DEEP WORK:
        protect and cultivate (limited) attention,
        ear plugs,
        skeptical of music,
        examine your own process,
 downtime,

josh-works

I needed a URL validator - it needed to check that URL's had HTTP or HTTPS at the beginning. I initially wrote a "before save" action, but didn't like it cluttering up my model. I found a reference to basically "monkey patching" Rail's default Validator class, so that's what I did!

# concerns/url_validator.rb
require 'uri'

class UrlValidator < ActiveModel::Validator

  def validate(record)
    if record.url?

josh-works

Double inject. What does it mean?

i want to know how long it takes to do some stuff. I've got some code like this:

def count_stuff(list)
  list.inject([]) do |results, item|
    results << get_results_from_something_else(values)
  end.flatten.uniq

josh-works

class Object
  def exceptional?
    false
  end
end

Course = Struct.new(:name, :duration) do  
  def duration=(new_duration)
    self[:duration] = Duration(new_duration)
  end