wildjcrt

require 'cgi'
require 'active_support'

def verify_and_decrypt_session_cookie(cookie, secret_key_base = Rails.application.secret_key_base)
  config = Rails.application.config
  cookie = CGI::unescape(cookie)
  salt   = config.action_dispatch.authenticated_encrypted_cookie_salt
  encrypted_cookie_cipher = config.action_dispatch.encrypted_cookie_cipher || 'aes-256-gcm'
  # serializer = ActiveSupport::MessageEncryptor::NullSerializer # use this line if you don't know your serializer
  serializer = ActionDispatch::Cookies::JsonSerializer

paulirish

What forces layout / reflow

All of the below properties or methods, when requested/called in JavaScript, will trigger the browser to synchronously calculate the style and layout*. This is also called reflow or layout thrashing, and is common performance bottleneck.

Generally, all APIs that synchronously provide layout metrics will trigger forced reflow / layout. Read on for additional cases and details.

Element APIs

Getting box metrics

• elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent

mcginty

<?xml version="1.0" encoding="utf-8"?>
<resources>
    <color name="material_red50">#ffffebee</color>
    <color name="material_red100">#ffffcdd2</color>
    <color name="material_red200">#ffef9a9a</color>
    <color name="material_red300">#ffe57373</color>
    <color name="material_red400">#ffef5350</color>
    <color name="material_red500">#fff44336</color>
    <color name="material_red600">#ffe53935</color>
    <color name="material_red700">#ffd32f2f</color>

pixeltrix

When should you use DateTime and when should you use Time?

It's a common misconception that [William Shakespeare][1] and [Miguel de Cervantes][2] died on the same day in history - so much so that UNESCO named April 23 as [World Book Day because of this fact][3]. However because England hadn't yet adopted [Gregorian Calendar Reform][4] (and wouldn't until [1752][5]) their deaths are actually 10 days apart. Since Ruby's Time class implements a [proleptic Gregorian calendar][6] and has no concept of calendar reform then there's no way to express this. This is where DateTime steps in:

>> shakespeare = DateTime.iso8601('1616-04-23', Date::ENGLAND)
=> Tue, 23 Apr 1616 00:00:00 +0000
>> cervantes = DateTime.iso8601('1616-04-23', Date::ITALY)
=> Sat, 23 Apr 1616 00:00:00 +0000

ishan1608

"""Heater
A program that spawns as much number of processes as there are CPUs on the computer.
This keeps the core temprature high.
I made this so that my fingers feel more comfortable while working on my laptop during winter.
Caution : An eye should be kept on the CPU temprature so that when it is getting too hot, 
the prgoram needs to be killed; else it can damage the CPU.
Author : Ishan
Email : ishanatmuzaffarpur@gmail.com
"""

denji

Moved to git repository: https://github.com/denji/jetbrains-cleanup-backup

Quick uninstall JetBrains settings:

curl -sL https://gist.github.com/denji/9731967/raw/jetbrains-uninstall.sh | bash -s

Quick backup JetBrains settings:

curl -sL https://gist.github.com/denji/9731967/raw/jetbrains-backup.sh | bash -s

wbroek

NOTE: Easier way is the X86 way, described on https://www.genymotion.com/help/desktop/faq/#google-play-services

Download the following ZIPs:
    
    ARM Translation Installer v1.1 (http://www.mirrorcreator.com/files/0ZIO8PME/Genymotion-ARM-Translation_v1.1.zip_links)
    
    Download the correct GApps for your Android version:
      Google Apps for Android 6.0 (https://www.androidfilehost.com/?fid=24052804347835438 - benzo-gapps-M-20151011-signed-chroma-r3.zip)
      Google Apps for Android 5.1 (https://www.androidfilehost.com/?fid=96042739161891406 - gapps-L-4-21-15.zip)
      Google Apps for Android 5.0 (https://www.androidfilehost.com/?fid=95784891001614559 - gapps-lp-20141109-signed.zip)

chrisjlee

-webkit-transform: translatez(0);
-moz-transform: translatez(0);
-ms-transform: translatez(0);
-o-transform: translatez(0);
transform: translatez(0);

dergachev

OS X Screencast to animated GIF

This gist shows how to create a GIF screencast using only free OS X tools: QuickTime, ffmpeg, and gifsicle.

Instructions

To capture the video (filesize: 19MB), using the free "QuickTime Player" application:

alexeds

Move your stashes from one repo to another

---

This was useful for me when we created a new branch for a new major release, but were still working on our current version as well. I cloned our repo again and kept the new project on our new branch, but also wanted to get my stashes there.

Download your stashes

git stash show -p > patch

You'll have to specify your stash and name your file whatevery you want. Do this for as all your stashes, and you'll have patch files in your pwd.