Skip to content

Instantly share code, notes, and snippets.

View kathgironpe's full-sized avatar

Katherine Giron Pe kathgironpe

  • SEA
  • 10:35 (UTC +08:00)
View GitHub Profile
@brianhempel
brianhempel / bench_rails_memory_usage.rb
Last active August 28, 2025 07:07
A script to test the memory usage of your Rails application over time. It will run 30 requests against the specified action and report the final RSS. Choose the URL to hit on line 45 and then run with `ruby bench_rails_memory_usage.rb`.
require "net/http"
def start_server
# Remove the X to enable the parameters for tuning.
# These are the default values as of Ruby 2.2.0.
@child = spawn(<<-EOC.split.join(" "))
XRUBY_GC_HEAP_FREE_SLOTS=4096
XRUBY_GC_HEAP_INIT_SLOTS=10000
XRUBY_GC_HEAP_GROWTH_FACTOR=1.8
XRUBY_GC_HEAP_GROWTH_MAX_SLOTS=0
@jtangelder
jtangelder / PreventGhostClick.js
Last active November 19, 2024 14:11
PreventGhostClick
/**
* Prevent click events after a touchend.
*
* Inspired/copy-paste from this article of Google by Ryan Fioravanti
* https://developers.google.com/mobile/articles/fast_buttons#ghost
*
* USAGE:
* Prevent the click event for an certain element
* ````
* PreventGhostClick(myElement);
@subudeepak
subudeepak / WebSockets.md
Last active October 24, 2025 09:19
The problems and some security implications of websockets - Cross-site WebSockets Scripting (XSWS)

WebSockets - An Introduction

WebSockets is a modern HTML5 standard which makes communication between client and server a lot more simpler than ever. We are all familiar with the technology of sockets. Sockets have been fundamental to network communication for a long time but usually the communication over the browser has been restricted. The general restrictions

  • The server used to have a permanent listener while the client (aka browser) was not designated any fixed listener for a more long term connection. Hence, every communication was restricted to the client demanding and the server responding.
  • This meant that unless the client requested for a particular resource, the server was unable to push such a resource to the client.
  • This was detrimental since the client is then forced to check with the server at regular intervals. This meant a lot of libraries focused on optimizing asynchronous calls and identifying the response of asynchronous calls. Notably t
@JamieMason
JamieMason / unfollow.js.md
Last active March 29, 2026 17:35
Unfollow everyone on twitter.com

Unfollow everyone on twitter.com

By @foldleft.bsky.social, see also Unfollow everyone on bsky.app.

  1. Go to https://twitter.com/YOUR_USER_NAME/following
  2. Open the Developer Console. (COMMAND+ALT+I on Mac)
  3. Paste this into the Developer Console and run it
// Unfollow everyone on twitter.com, by Jamie Mason (https://twitter.com/fold_left)
@cheeaun
cheeaun / rdrc2013.md
Last active December 18, 2015 04:59
RedDotRubyConf 2013 links & resources

Security is Hard

Massive Assignment

  • watch for ActiveRecord Relation, like has_many, has_many :through
  • watch for user_roles, `group_users
  • UPDATE action

Admin

@danlucraft
danlucraft / extract.rb
Last active March 26, 2025 09:22
Extract annotations from PDFs with pdf-reader gem
require 'pdf-reader'
require './markup_receiver'
doc = PDF::Reader.new(ARGV[0])
$objects = doc.objects
def is_note?(object)
object[:Type] == :Annot && [:Text, :FreeText].include?(object[:Subtype])
end
@dergachev
dergachev / GIF-Screencast-OSX.md
Last active April 11, 2026 05:03
OS X Screencast to animated GIF

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.

Screencapture GIF

Instructions

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

@MicahChalmer
MicahChalmer / .htaccess
Last active May 1, 2016 16:49
Scripts to set up Ruby 1.9.3 on a DreamHost shared hosting account via rbenv and ruby-build, and run a Rack app with it via FastCGI.
<IfModule mod_fastcgi.c>
AddHandler fastcgi-script .fcgi
</IfModule>
<IfModule mod_fcgid.c>
AddHandler fcgid-script .fcgi
</IfModule>
Options +FollowSymLinks +ExecCGI
RewriteEngine On
@bryanbibat
bryanbibat / team_x_prob_a.rb
Created December 3, 2012 15:43
DevCon Code Challenge Cup Solutions
def trunc(x)
(x * 100.0).floor / 100.0
end
output = File.open("bestfit2.txt", "w")
count, point_count, points, = nil, nil, nil
IO.readlines("bestfit.txt").each do |line|