chalmagean

products = [
  { id: 1, name: "Foo" },
  { id: 2, name: "Bar" }
];

# display products
products.each_with_index { |prod, idx| puts "#{idx}. #{prod[:name]}" }

# user picked 1
cart << products[1][:id]

chalmagean

class Printer
  def self.full_name(person)
    "Your name is: #{person.fname} #{person.lname}"
  end
end

class Person
  attr_reader :fname, :lname

  def initialize(fname, lname)

chalmagean

# typed: true

class Printer
  extend T::Sig

  sig { params(person: Person).returns(String) }
  def self.full_name(person); end
end

class Person

chalmagean

#!/bin/sh

echo "Loading the test enviromnment..."
source .env.test

RAILS_ENV=test bundle exec rspec

if [[ $? != 0 ]]; then
  echo "RSpec tests have failures. Push rejected."
  exit 1

chalmagean

<%= link_to "javascript: alert('c')" do %>
  <%= image_tag "foo.png" %>
<% end %>

chalmagean

defmodule Example.User do
  use Example.Web, :model

  schema "users" do
    field :email, :string

    timestamps()
  end

  @doc """

chalmagean

# Install https://github.com/rubencaro/cipher first
require Cipher.Helpers, as: H

defmodule Enc do
  @random_key H.env(:keyphrase) |> Cipher.Digest.generate_key

  def stream_encrypt(xml) do
    {_, result} =
      :crypto.stream_init(:rc4, @random_key)
      |> :crypto.stream_encrypt(xml)

chalmagean

-- Assuming we have a list of items in the model (type alias Model = { items : List Item }
-- where Item is a record like { id : Int, name : String }

-- this goes in the view and generates an html dropdown
select
   [ onSelect ValueSelectedMsg ]
   (List.map (\item -> option [ value (toString item.id) ] [ text item.name ]) model.items)


targetSelectedIndex : Json.Decoder Int

chalmagean

# Purge merged branches
git branch --merged | grep -v "\*" | grep -v master | grep -v staging | grep -v develop | xargs -n 1 git branch -d

chalmagean

# Here's how to back up a named volume

# 1. Using a `ubuntu` image, we mount the named volume (`myproj_dbdata`) to a `/dbdata` folder inside the `ubuntu` container.
# 2. Then, we create a new folder inside the `ubuntu` container named `/backup`.
# 3. We then create an archive containing the contents of the `/dbdata` folder and we store it inside the `/backup` folder (inside the container).
# 4. We also mount the `/backup` folder from the container to the docker host (your local machine) in a folder named `/backups` inside the current directory.
docker run --rm -v myproj_dbdata:/dbdata -v $(pwd)/backups:/backup ubuntu tar cvf /backup/db_data_"$(date '+%y-%m-%d')".tar /dbdata