-
Open a browser
# start an instance of firefox with selenium-webdriver driver = Selenium::WebDriver.for :firefox # :chrome -> chrome # :ie -> iexplore
- Go to a specified URL
require 'rubygems' | |
require 'dnsimple' | |
DNSimple::Client.username = '[email protected]' | |
DNSimple::Client.password = 'd34thst4r' | |
DNSimple::Client.debug = false | |
user = DNSimple::User.me | |
puts "#{user.domain_count} domains" |
// if you have a link in your HTML that points to a sound: <a href="http://soundcloud.com/matas/hobnotropic">My Track</a> | |
// it will convert them to our new HTML5 widgets | |
$('a[href*="soundcloud.com"]').each(function(){ | |
var $link = $(this); | |
$.getJSON('http://soundcloud.com/oembed?format=js&url=' + $link.attr('href') + '&iframe=true&callback=?', function(response){ | |
$link.replaceWith(response.html); | |
}); | |
}); |
$sprites: sprite-map("sprites/*.png"); | |
$sprites-retina: sprite-map("sprites-retina/*.png"); | |
@mixin sprite-background($name) { | |
background-image: sprite-url($sprites); | |
background-position: sprite-position($sprites, $name); | |
background-repeat: no-repeat; | |
display: block; | |
height: image-height(sprite-file($sprites, $name)); | |
width: image-width(sprite-file($sprites, $name)); |
#!/usr/bin/env ruby | |
# -*- coding: utf-8 -*- | |
require 'rubygems' | |
require 'json' | |
require 'time' | |
require 'date' | |
require 'mongo' | |
require 'pp' | |
MONGO_HOST = ENV["MONGO_HOST"] |
module Freckle | |
module Date | |
class << self | |
def parse(string) | |
raw = string.to_s.strip | |
return nil if raw.empty? | |
begin | |
# reverse order if we encounter "European" formatting |
# Thee will be more information here when I share the entire problem space I'm working on, but | |
# in short, this is preview material for my second talk in a series called "What Computer Scientists Know". | |
# The first talk is on recursion, and goes through several examples., leading up to a problem based | |
# on a simple puzzle that initial estimates based on performance of a previous puzzle would take years | |
# to solve on modern computers with the techniques shown in Ruby. That sets the stage for improving the | |
# performance of that problem with threading, concurrency, and related tuning. | |
# | |
# The second talk is on threading and concurrency, touching on algorithmic performance as well. | |
# Using some knowledge of the problem (board symmetry, illegal moves, etc), we reduce the problem space | |
# to about .5% of what we initially thought it was. Still, the initial single threaded solution took more |
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.
elem.offsetLeft
, elem.offsetTop
, elem.offsetWidth
, elem.offsetHeight
, elem.offsetParent
@supports (-webkit-backdrop-filter: none) or (backdrop-filter: none) { | |
.blurred-container { | |
-webkit-backdrop-filter: blur(10px); | |
backdrop-filter: blur(10px); | |
} | |
} | |
/* slightly transparent fallback for Firefox (not supporting backdrop-filter) */ | |
@supports not ((-webkit-backdrop-filter: none) or (backdrop-filter: none)) { | |
.blurred-container { |