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@tomas-stefano
tomas-stefano / Capybara.md
Last active July 2, 2025 01:57
Capybara cheatsheet

Capybara Actions

# Anchor
click_link 'Save'

# Button
click_button 'awesome'

# Both above
@erikreagan
erikreagan / mac-apps.md
Created August 4, 2012 19:18
Mac developer must-haves

Mac web developer apps

This gist's comment stream is a collection of webdev apps for OS X. Feel free to add links to apps you like, just make sure you add some context to what it does — either from the creator's website or your own thoughts.

— Erik

@igrigorik
igrigorik / gist:3148848
Created July 20, 2012 05:24
Convert any YouTube video into an audio file you can listen to on the go...
# Convert any YouTube video into an audio file you can listen to on the go, using:
# http://rg3.github.com/youtube-dl/
{ ~ } > brew install ffmpeg
{ ~ } > wget https://raw.github.com/rg3/youtube-dl/2012.02.27/youtube-dl
{ ~ } > chmod u+x youtube-dl
# Pick which video format you want to download.. (use any YT video link)
{ ~ } > ./youtube-dl -s -F http://www.youtube.com/watch?v=vT1KmTQ-1Os
@andreyvit
andreyvit / tmux.md
Created June 13, 2012 03:41
tmux cheatsheet

tmux cheat sheet

(C-x means ctrl+x, M-x means alt+x)

Prefix key

The default prefix is C-b. If you (or your muscle memory) prefer C-a, you need to add this to ~/.tmux.conf:

remap prefix to Control + a

@jboner
jboner / latency.txt
Last active November 23, 2025 01:02
Latency Numbers Every Programmer Should Know
Latency Comparison Numbers (~2012)
----------------------------------
L1 cache reference 0.5 ns
Branch mispredict 5 ns
L2 cache reference 7 ns 14x L1 cache
Mutex lock/unlock 25 ns
Main memory reference 100 ns 20x L2 cache, 200x L1 cache
Compress 1K bytes with Zippy 3,000 ns 3 us
Send 1K bytes over 1 Gbps network 10,000 ns 10 us
Read 4K randomly from SSD* 150,000 ns 150 us ~1GB/sec SSD
@yeban
yeban / jekyll.tag-cloud.rb
Created April 3, 2012 07:36
Flexible, logarithmic distribution, tag cloud for Jekyll.
# Copyright (C) 2011 Anurag Priyam - MIT License
module Jekyll
# Jekyll plugin to generate tag clouds.
#
# The plugin defines a `tag_cloud` tag that is rendered by Liquid into a tag
# cloud:
#
# <div class='cloud'>
@sidane
sidane / capybara_selenium_resize_window.rb
Last active June 3, 2022 13:27
Resize browser window with Capybara Selenium
# Resize selenium browser window to avoid Selenium::WebDriver::Error::MoveTargetOutOfBoundsError errors
#
# Example usage with Rspec (in spec/support/spec_helper.rb):
#
# config.before(:each) do
# set_selenium_window_size(1250, 800) if Capybara.current_driver == :selenium
# end
#
def set_selenium_window_size(width, height)
window = Capybara.current_session.current_window.resize_to
@jasonrudolph
jasonrudolph / git-branches-by-commit-date.sh
Created February 12, 2012 20:40
List remote Git branches and the last commit date for each branch. Sort by most recent commit date.
# Credit http://stackoverflow.com/a/2514279
for branch in `git branch -r | grep -v HEAD`;do echo -e `git show --format="%ci %cr" $branch | head -n 1` \\t$branch; done | sort -r
@nazgob
nazgob / ctags.setup
Created January 6, 2012 13:44
ctags setup on mac
# you have ctags but it does not work...
$ ctags -R --exclude=.git --exclude=log *
ctags: illegal option -- R
usage: ctags [-BFadtuwvx] [-f tagsfile] file ...
#you need to get new ctags, i recommend homebrew but anything will work
$ brew install ctags
#alias ctags if you used homebrew
$ alias ctags="`brew --prefix`/bin/ctags"
@gkop
gkop / gist:1371962
Created November 17, 2011 00:13
Capture javascript errors in Cucumber+Capybara+Webdriver tests
# in features/support/env.rb
require 'selenium/webdriver'
# we need a firefox extension to start intercepting javascript errors before the page
# scripts load
Capybara.register_driver :selenium do |app|
profile = Selenium::WebDriver::Firefox::Profile.new
# see https://github.com/mguillem/JSErrorCollector
profile.add_extension File.join(Rails.root, "features/support/extensions/JSErrorCollector.xpi")
Capybara::Selenium::Driver.new app, :profile => profile