tokland

const canvas = document.getElementById("tutorial");
const context = canvas.getContext("2d");

function drawBackground() {
    context.beginPath();
    context.fillStyle = "rgb(200, 200, 200)";
    context.rect(0, 0, 640, 480);
    context.fill();
    context.closePath();
}

tokland

type Length<T extends any[]> = T["length"];
type Head<T extends any[]> = T[0];
type Tail<T extends any[]> = ((...xs: T) => any) extends (x: any, ...t: infer T) => any ? T : never;

type Last<T extends any[]> = {
    0: never;
    1: T[0];
    ">1": Last<Tail<T>>;
}[Length<T> extends 0 ? 0 : Length<T> extends 1 ? 1 : ">1"];

tokland

#!/usr/bin/env node

/*
 * @fileoverview Program to free the content in kindle books as plain HTML.
 *
 * This is largely based on reverse engineering kindle cloud app
 * (https://read.amazon.com) to read book data from webSQL.
 *
 * Access to kindle library is required to download this book.
 */

tokland

function promiseMap(inputValues, mapper) {
  const reducer = (acc$, inputValue) =>
    acc$.then(acc => mapper(inputValue).then(result => acc.push(result) && acc));
  return inputValues.reduce(reducer, Promise.resolve([]));
}

/* Example */

const axios = require('axios');

tokland

class Importer
  CODES = {:header, "00F", :data => "00I"}
   
  def self.import_products(fileobj)
    fileobj.lines.each_slice(4).map do |group_lines|
      type, *data_lines = group_lines.map(&:strip)
      case type
      when CODES[:header]
        # what to do/return here?
      when CODES[:data]

tokland

# Usage:

# $loopc 3 echo 'hello world'
# hello world
# hello world
# hello world
#
function loopc {
  LIMIT=$1
  shift 1

tokland

require 'rubygems'
require 'eventmachine'

$stdout.sync = true
$stderr.sync = true

EM.run {
  
  EM.add_periodic_timer(0.1) {
    $stdout.write "stdout\n"