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@paulirish
paulirish / what-forces-layout.md
Last active May 19, 2024 03:45
What forces layout/reflow. The comprehensive list.

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
@tomas-stefano
tomas-stefano / Capybara.md
Last active May 2, 2024 05:16
Capybara cheatsheet

Capybara Actions

# Anchor
click_link 'Save'

# Button
click_button 'awesome'

# Both above
@castwide
castwide / rails.rb
Last active April 27, 2024 08:54
Enhance Rails Intellisense in Solargraph
# The following comments fill some of the gaps in Solargraph's understanding of
# Rails apps. Since they're all in YARD, they get mapped in Solargraph but
# ignored at runtime.
#
# You can put this file anywhere in the project, as long as it gets included in
# the workspace maps. It's recommended that you keep it in a standalone file
# instead of pasting it into an existing one.
#
# @!parse
# class ActionController::Base
@kelvinn
kelvinn / cmd.sh
Created July 24, 2014 02:55
Example of using Apache Bench (ab) to POST JSON to an API
# post_loc.txt contains the json you want to post
# -p means to POST it
# -H adds an Auth header (could be Basic or Token)
# -T sets the Content-Type
# -c is concurrent clients
# -n is the number of requests to run in the test
ab -p post_loc.txt -T application/json -H 'Authorization: Token abcd1234' -c 10 -n 2000 http://example.com/api/v1/locations/
@coreyhaines
coreyhaines / .rspec
Last active April 11, 2024 00:19
Active Record Spec Helper - Loading just active record
--colour
-I app
@adrienbrault
adrienbrault / purge.sh
Created September 24, 2012 10:02
Script to reduce VM size before packaging for vagrant
#!/bin/sh
# Credits to:
# - http://vstone.eu/reducing-vagrant-box-size/
# - https://github.com/mitchellh/vagrant/issues/343
aptitude -y purge ri
aptitude -y purge installation-report landscape-common wireless-tools wpasupplicant ubuntu-serverguide
aptitude -y purge python-dbus libnl1 python-smartpm python-twisted-core libiw30
aptitude -y purge python-twisted-bin libdbus-glib-1-2 python-pexpect python-pycurl python-serial python-gobject python-pam python-openssl libffi5
@mateusg
mateusg / devise.pt-BR.yml
Last active December 23, 2023 15:15 — forked from alexandreaquiles/devise.pt-BR.yml
pt-BR translations for Devise
# encoding: UTF-8
# pt-BR translations for Devise
pt-BR:
devise:
confirmations:
confirmed: "Sua conta foi confirmada com sucesso. Você está logado."
send_instructions: "Dentro de minutos, você receberá um e-mail com instruções para a confirmação da sua conta."
send_paranoid_instructions: "Se o seu endereço de e-mail estiver cadastrado, você receberá uma mensagem com instruções para confirmação da sua conta."
failure:
already_authenticated: "Você já está logado."
@algal
algal / nginx-cors.conf
Created April 29, 2013 10:52
nginx configuration for CORS (Cross-Origin Resource Sharing), with an origin whitelist, and HTTP Basic Access authentication allowed
#
# A CORS (Cross-Origin Resouce Sharing) config for nginx
#
# == Purpose
#
# This nginx configuration enables CORS requests in the following way:
# - enables CORS just for origins on a whitelist specified by a regular expression
# - CORS preflight request (OPTIONS) are responded immediately
# - Access-Control-Allow-Credentials=true for GET and POST requests
@afeld
afeld / gist:5704079
Last active November 27, 2023 15:43
Using Rails+Bower on Heroku

Stevey's Google Platforms Rant

I was at Amazon for about six and a half years, and now I've been at Google for that long. One thing that struck me immediately about the two companies -- an impression that has been reinforced almost daily -- is that Amazon does everything wrong, and Google does everything right. Sure, it's a sweeping generalization, but a surprisingly accurate one. It's pretty crazy. There are probably a hundred or even two hundred different ways you can compare the two companies, and Google is superior in all but three of them, if I recall correctly. I actually did a spreadsheet at one point but Legal wouldn't let me show it to anyone, even though recruiting loved it.

I mean, just to give you a very brief taste: Amazon's recruiting process is fundamentally flawed by having teams hire for themselves, so their hiring bar is incredibly inconsistent across teams, despite various efforts they've made to level it out. And their operations are a mess; they don't real