(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
#!/usr/bin/env ruby | |
# Generate a dbdiagram for dbdiagram.io from a dbt project. | |
# | |
# Usage: | |
# 1. Run `dbt docs generate` first. | |
# 2. Run `dbt_to_dbdiagram.rb` | |
# 3. Paste the output in https://dbdiagram.io/ | |
require 'yaml' | |
require 'json' |
(by @andrestaltz)
If you prefer to watch video tutorials with live-coding, then check out this series I recorded with the same contents as in this article: Egghead.io - Introduction to Reactive Programming.
<!DOCTYPE html> | |
<html> | |
<head> | |
<meta http-equiv="Content-type" content="text/html; charset=utf-8"> | |
<title>Testing Pie Chart</title> | |
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.js?2.1.3"></script> | |
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.geom.js?2.1.3"></script> | |
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.layout.js?2.1.3"></script> | |
<style type="text/css"> |
Many programming languages, including Ruby, have native boolean (true and false) data types. In Ruby they're called true
and false
. In Python, for example, they're written as True
and False
. But oftentimes we want to use a non-boolean value (integers, strings, arrays, etc.) in a boolean context (if statement, &&, ||, etc.).
This outlines how this works in Ruby, with some basic examples from Python and JavaScript, too. The idea is much more general than any of these specific languages, though. It's really a question of how the people designing a programming language wants booleans and conditionals to work.
If you want to use or share this material, please see the license file, below.
I've been following this blog post on how to set up an api-only Rails 5 application. One of the sections talks about creating a subdomain for your api
Rails.application.routes.draw do
constraints subdomain: "api" do
scope module: "api" do
... or Why Pipelining Is Not That Easy
Golang Concurrency Patterns for brave and smart.
By @kachayev
This guide explains the way to setup a production server using Capistrano.
# Gemfile
# Use Capistrano for deployment
<!DOCTYPE html> | |
<html> | |
<head> | |
<meta http-equiv="Content-Type" content="text/html;charset=utf-8"> | |
<title>Chronological Diagram of Asia</title> | |
<script type="text/javascript" src="http://mbostock.github.com/d3/d3.v2.js"></script> | |
<style type="text/css"> | |
.chart { | |
shape-rendering: crispEdges; | |
} |