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# Example of using 
require 'sqlite3'
require 'active_record'
ActiveRecord::Base.establish_connection("sqlite3::memory:")
conn = ActiveRecord::Base.connection
conn.create_table :users do |t|
  t.string :name
end
conn.create_table :user_matches do |t|
  t.references :sender

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#!/usr/bin/env python3

"""
Script to update this host's DNS entry on Cloudflare. Silently succeeds.
It requires you to have set the environment variables:

- CLOUDFLARE_API_KEY
- CLOUDFLARE_EMAIL
- CLOUDFLARE_HOSTNAME

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#!/usr/bin/env sh

name="My Cool Web App Project"
serve="npm start"
watch="node_modules/.bin/cake watch"
serve="npm start"

tmux has-session -t "$name"
if [ $? != 0 ]
then

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import (
	"bytes"
	"fmt"
	"io/ioutil"
	"net/http"
	"testing"
)

type incrt byte

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#!/bin/sh

# This program shows the result of applying the % and # shell parameter
# expansion modifiers to a parameter, for those who are constantly looking it
# up.

x=${1:?Usage: parmexp <parameter>}
echo "(hash dot star) ‥‥‥‥‥‥‥‥....... $x \${x#.*}  → ${x#.*}"
echo "(hash hash dot star) .......... $x \${x##.*} → ${x##.*}"
echo "(percent dot star) ............ $x \${x%.*}  → ${x%.*}"

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/*
* Converts the 2-letter code (such as "es" or "ie" to an emoji representing that country's flag.
* It works because a flag emoji, such as the German flag, is a combination of regional letter
* glyphs (🇩 🇪 without a space is rendered as 🇩🇪, the German (de) flag). Those glyphs start at
* 0x1f1e6 and end at 0x1f1ff. 'a' is 97.
*/
const flagEmojiForCode = (code) => {
  const h = code.toLowerCase().charCodeAt(0) + (0x1f1e6 - 97)
  const l = code.toLowerCase().charCodeAt(1) + (0x1f1e6 - 97)
  return String.fromCodePoint(h, l)

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; A functional solution to Uncle Bob's Bowling Game
; https://programmingpraxis.com/2009/08/11/uncle-bobs-bowling-game-kata/

(defun strike? (roll)
  (and roll
       (= 10 (first roll))))

(defun spare? (roll)
  (and roll
       (rest roll)

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require 'minitest/autorun'

# A Ruby solution to Uncle Bob's Bowling Game
# https://programmingpraxis.com/2009/08/11/uncle-bobs-bowling-game-kata/
module Bowling

  module_function

  def strike?(scores)
    scores&.first == 10

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#!/usr/bin/env python

from enum import Enum, IntEnum
from typing import Dict, Callable
import unittest


class Direction(IntEnum):
    NORTH = 0
    EAST = 1

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# awsume
# Usage: awsume ROLENAME
# It uses the _current_ AWS profile (set as an env-var or the default) to get
# the user's ARN and associated MFA devices, then it asks for a token code,
# sends the `aws sts assume-role` call to AWS, and exports the resulting session.
# /usr/bin/env bash

awsume() {
  user="$(aws sts get-caller-identity --query 'Arn' --output text)"
  role="${user%:*}:role/${1?Usage: $0 profile}"