rafbm

class IncreaseDelayedJobsHandlerLength < ActiveRecord::Migration
  def up
    # Increase to MEDIUMTEXT (16,777,215 bytes)
    change_column(:delayed_jobs, :handler, :text, limit: 16.megabytes - 1)
  end

  def down
    # Back to default TEXT (65,535 bytes)
    change_column(:delayed_jobs, :handler, :text)
  end

rafbm

irb(main):051:0> puts 'foo\bar'
foo\bar
nil
irb(main):052:0> puts 'foo\\bar'
foo\bar
nil
irb(main):053:0> puts 'foo\\\bar'
foo\\bar
nil
irb(main):054:0> puts 'foo\\\\bar'

rafbm

<ul>
  <li>Foo</li>
  <li>These <b>two</b> <b>words</b> should stay separate.</li>
  <li>Bar</li>
</ul>

rafbm

module ApplicationHelper
  def inline_tag(*args, &block)
    body = Nokogiri::HTML(capture(&block)).at_css('body')

    # First-level text nodes
    body.xpath('text()').each do |node|
      node.content = node.content.strip
    end

    content_tag(*args) { body.inner_html.strip.html_safe }

rafbm

describe ReportsController do
  describe :create do
    before do
      @payload = { :version => "1.0.0" }
    end

    it "succeeds with present serial" do
      @payload[:serial] = "123abc"
      post reports_path, @payload.to_json

rafbm

require 'benchmark'

# Say you have a Foo class and you want instances of this class to delegate unknown
# methods to two objects, first to @object_1, then to @object_2.

class Foo
  def initialize
    @object_1 = nil
    @object_2 = ''
  end

rafbm

# gem install redcarpet
# gem install pygments.rb

require 'redcarpet'
require 'pygments'

class MarkdownWithPygments < Redcarpet::Render::HTML
  def block_code(code, language)
    Pygments.highlight(code, lexer: language)
  end

rafbm

require 'benchmark'

# Which is faster for creating an array of numbers, lowercase and uppercase letters?

Benchmark.benchmark Benchmark::CAPTION, 12 do |bm|
  bm.report 'String#split' do
    100_000.times { '0123456789abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ'.split('') }
  end
  bm.report 'Range#to_a' do
    100_000.times { ('0'..'9').to_a + ('a'..'z').to_a + ('A'..'Z').to_a }

rafbm

CSS Challenge #2

You start with this:

And must end up with this:

rafbm

CSS Challenge

You start with this:

<style>
  div {
    display: inline-block;
    width: 250px;
 padding: 20px;