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# Add it in your alias
# usage: bash-record final_gif_name speed:optional cast_file:optional
#
# Requires asciinema and docker. 
# Optional to have gifsicle for gif optimization.
#
# Examples:
#  bash-record testing-command-x
#  bash-record slow-recording-x 2
#  bash-record please-faster-x 20 /tmp/slow-recording-x.cast

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import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(

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import 'package:flutter/material.dart';

void main() {
  runApp(MyApp());
}

class MyApp extends StatelessWidget {
  @override
  Widget build(BuildContext context) {
    return MaterialApp(

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/*
Copy this into the console of any web page that is interactive and doesn't
do hard reloads. You will hear your DOM changes as different pitches of
audio.

I have found this interesting for debugging, but also fun to hear web pages
render like UIs do in movies.
*/

const audioCtx = new (window.AudioContext || window.webkitAudioContext)()

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Upload images with React and the carrierwave Ruby gem for Rails 5

I recently attended a 4.5 month, intensive coding bootcamp in Boston, MA called Launch Academy. I spent a lot of time in academic science doing imaging research, so I naturally had an interest in learning how to manipulate images in this new web browser environment. For my capstone project, I created a very simple image editing Rails app where I realized I needed to be able to save/upload images to my database.

Since, through earnest effort, I wanted my app to use React for a single-page experience, and I quickly discovered that my desire to use a React/fetch/carrierwave/fog/Rails strategy was initially difficult to learn. I had to pull information from many sources (StackOverflow, Medium, official docs, other blog posts, course instructors, etc) to develop a method that uses this specific POSTing cycle.

This blog post represents my findings to integrate all these technologies in a modern, seamless

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#!/usr/bin/env ruby

#
# Passenger Process Monitor
#
# By Darren Oakley
# Based heavily on a script by James Smith (https://gist.github.com/851520)
# That in turn was based on a similar script by Jon Bettcher
#
# - Check memory usage of all paseenger child process and kill if grows too large.

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=begin

  Include in your rspec config like so:

  RSpec.configure do |spec|
    spec.include RSpec::RedisHelper, redis: true
  end

  This helper will clean redis around each example.
=end

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Webpack with Rails Part 1

I don't like Sprockets, but it's the easiest and best choice for lots of Ruby on Rails projects. When looking for a better way to manage my JavaScript assets and an improved developer story, my current tool of choice is webpack. While I wish Rails supported drop-in asset pipelines the way that Phoenix does, it's not hard to use webpack with Rails.

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public static int lighten(int color, double fraction) {
		int red = Color.red(color);
		int green = Color.green(color);
		int blue = Color.blue(color);
		red = lightenColor(red, fraction);
		green = lightenColor(green, fraction);
		blue = lightenColor(blue, fraction);
		int alpha = Color.alpha(color);
		return Color.argb(alpha, red, green, blue);
	}

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Concept

(The blockquote style does not look so well so I just pasted directly, but these are all quoted from the links in the bottom of this page)

You should not implement to_str unless your object acts like a string, rather than just having a string representation. The only core class that implements to_str is String itself.

[to_i and to_s] are not particularly strict: if an object has some kind of decent representation as a string, for example, it will probably have a to_s method… [to_int and to_str] are strict conversion functions: you implement them only if you object can naturally be used every place a string or an integer could be used.

to_str is used by methods such as String#concat to convert their arguments to a string. Unlike to_s, which is supported by almost all classes, to_str is normally implemented only by those classes that act like strings. Of the built-in classes, only Exception and String implement to_str