sidonath

#!/bin/bash

set -e

INSTALLED_CHROME_VERSION=$(apt-cache policy google-chrome-stable | grep Installed | egrep -o '[[:digit:]]+' | head -n1)
CHROMEDRIVER_VERSION=$(curl https://chromedriver.storage.googleapis.com/LATEST_RELEASE_$INSTALLED_CHROME_VERSION)

# Download ChromeDriver into Semaphore's cached directory if it doesn't exist already
if ! [ -e $SEMAPHORE_CACHE_DIR/chromedriver-$CHROMEDRIVER_VERSION ]; then
  mkdir -p $SEMAPHORE_CACHE_DIR/chromedriver-$CHROMEDRIVER_VERSION

sidonath

<?xml version="1.0" encoding="UTF-8"?>
<testsuite name="rspec" tests="9" failures="6" errors="0" time="0.001972" timestamp="2017-06-13T18:46:48+09:00">
<properties>
<property name="seed" value="12345"/>
</properties>
<testcase classname="spec.example_spec" name="some example specs should be pending" file="./spec/example_spec.rb" time="0.000106"><skipped/></testcase>
<testcase classname="spec.example_spec" name="some example specs escapes &lt;html tags=&apos;correctly&apos; and=&quot;such &amp;amp; such&quot;&gt;" file="./spec/example_spec.rb" time="0.000458"><failure message="
expected: &quot;&lt;p&gt;This is &lt;strong&gt;very&lt;/strong&gt; important&lt;/p&gt;&quot;
     got: &quot;&lt;p&gt;This is important&lt;/p&gt;&quot;

sidonath

#!/usr/bin/env ruby

require 'benchmark'

def add_methods_to_a_module(m)
  1_000.times.map do |i|
    method_name = "method_#{i}"
    m.__send__(:define_method, method_name) {}
    method_name
  end

sidonath

Prepare your application for the old age

Since I didn't have any slides during the talk, here are some resources that cover similar topics and/or were mentioned during the talk itself.

Happy hacking!

Various articles related to the talk

The article that inspired the talk: The Startup Trap.

sidonath

Mac
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sidonath

;(function ($) {
  var $elementsToCatchUp = $(),
      followBased = false,
      bound = false;

  function startCatchingUp($catchup) {
    $catchup
      .before($('<div>',
        { 'class': 'catching-up-placeholder', 'height': $catchup.outerHeight() }))
      .addClass('catching-up')

sidonath

# Strip leading and trailing bytes
def self.decode data, &blk
  while msg = data.slice!(/\000([^\377]*)\377/)
    msg.gsub!(/^\x00|\xff$/, '')
    yield msg
  end
end

sidonath

// approach one: simply assign function to prototype
// it works, but you still need to use "apply" to make the method 
// work as needed
function smallest1(array){
  Array.prototype.min = Math.min;
  return array.min.apply(array, array);
}

// approach two: use apply in the function assigned to Array's prototype
function smallest2(array){

sidonath

(function($) {

  function print_array(obj, opts) {
    var result = [];
    for (var i = 0; i < Math.min(opts.max_array, obj.length); i++)
      result.push($.print(obj[i], $.extend({}, opts, { max_array: 3, max_string: 40 })));

    if (obj.length > opts.max_array)
      result.push((obj.length - opts.max_array) + ' more...');
    if (result.length == 0) return "[]"

sidonath

#!/usr/bin/env ruby

require 'rubygems'
require 'osax'
require 'maruku'

doc = Appscript.app('WriteRoom').documents[0]
path = doc.file.get.path

file = File.join(