jimytc

ActiveRecord::Schema.define do
  create_table :posts do |table|
    table.string :title
    table.string :content
  end
end

class Post < ActiveRecord::Base
end

jimytc

# Regular way
(1..1_000_000_000).select(&:even?)
                  .map { |i| i**2 }
                  .first(10)

# Lazy way
(1..1_000_000_000).lazy
                  .select(&:even?)
                  .map { |i| i**2 }
                  .first(10)

jimytc

import java.util.ArrayList;
import java.util.Collections;

public class Pen implements Comparable<Pen> {

  private String serialNumber;
  private int length;

  public Pen(String serialNumber, int length) {
    this.serialNumber = serialNumber;

jimytc

class Pen
  include Comparable
  attr :serialNumber, :length

  def initialize(serialNumber, length)
    @serialNumber = serialNumber
    @length = length
  end

  def to_s

jimytc

#!/bin/sh
# if you're using ZSH, change the shebang above to "#!/bin/zsh -i"

if [ ${#} -ne 2 ]; then
  echo >&2 Usage: $(basename ${0}) old-version new-version
  exit 1
fi

home_path=$(cd ~; pwd -P)
old_version=${1}

jimytc

# frozen_string_literal: true

source 'https://rubygems.org'

gem 'activesupport'
gem 'minitest'
gem 'minitest-reporters', '>= 0.5.0'
gem 'rr'
gem 'rubocop'

jimytc

# Rails production setup via SQLite3 made durable by https://litestream.io/ 
# Copy this to Dockerfile on a fresh rails app. Deploy to fly.io or any other container engine. 
#
#  try locally: docker build . -t rails && docker run -p3000:3000 -it rails
#
#  in production you might want to map /data to somewhere on the host, 
#  but you don't have to!
# 
FROM ruby:3.0.2