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krukid
/ ROR for virtualized ubuntu
Created
February 24, 2010 02:12
Ruby on Rails for virtualized Ubuntu
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| PURPOSE | |
| ------- | |
| The following is a walkthrough of Ruby on Rails installation on a VirtualBox'ed Ubuntu and some related tricks. | |
| NOTES | |
| ----- | |
| * Most of the commands below require superuser privileges, so with that in mind we proceed. |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Anchor: selective underline CSS</title> | |
| <style type="text/css"> | |
| .a { | |
| text-decoration:none; | |
| font-size: 40px; | |
| } | |
| .w { |
krukid
/ css3 cycled table row highlighting.html
Created
March 29, 2011 21:11
how to preserve correct row highlighting when dynamically manipulating table structure (with css3); useful for ajaxed tables
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| <!-- CSS3 ROW STYLE CYCLING | |
| * alternative pseudo-class notation: | |
| :nth-child(2n) == :nth_child(even) | |
| :nth-child(2n+1) == :nth_child(odd) | |
| --> | |
| <style type="text/css"> | |
| table.css-cycle tr:nth-child(2n) { | |
| background: silver; | |
| } |
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| <!DOCTYPE html> | |
| <html> | |
| <head> | |
| <title>Safari5 Dialog Z-Index Bug</title> | |
| <style type="text/css"> | |
| #overlay { | |
| position: absolute; | |
| left: 0; | |
| top: 0; | |
| width: 100%; |
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| class Timer | |
| attr_reader :diff, :sum, :step | |
| def initialize | |
| reset! | |
| end | |
| def mark! | |
| new_mark = now |
krukid
/ streaming_echoed_image_service.rb
Created
March 12, 2012 14:22
goliath server that echoes embedded html image (jpeg)
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| require 'goliath' | |
| require 'base64' | |
| class StreamingEchoedImageService < Goliath::API | |
| def on_headers(env, headers) | |
| env.logger.info "#{env['REQUEST_METHOD']} #{env['REQUEST_URI']}" | |
| env.logger.info 'received headers: ' + headers.inspect | |
| env['async-headers'] = headers | |
| end |
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| # | |
| # requires: | |
| # a) run https://gist.github.com/2022231 on localhost:3001 | |
| # b) provide a streamed.jpg at script location | |
| # | |
| # result: | |
| # this fails for em-http-request v1.0.1 | |
| # | |
| require "rubygems" |
krukid
/ dom_mutation_observer.js
Created
September 9, 2012 15:19
Chrome mutation observer for dynamic element handling (removing popups by id and such)
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| (function (window, checkNode){ | |
| var p = {}; | |
| var m = { | |
| registerObserver: function() { | |
| if (typeof(window.WebKitMutationObserver) == "undefined") return; | |
| p.observer = new window.WebKitMutationObserver(function(mutationRecords) { | |
| mutationRecords.forEach(function(mutationRecord) { | |
| for (var i = 0; i < mutationRecord.addedNodes.length; ++i) |
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| require 'sinatra' | |
| get '/' do | |
| erb :index | |
| end | |
| get '/iframe' do | |
| erb :iframe | |
| end |
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| Gfx = (function(window) { | |
| var document = window.document; | |
| var canvas = document.createElement('canvas'); | |
| var ctx = canvas.getContext('2d'); | |
| var helpers = { | |
| hyp: function(x0, y0, x1, y1) { | |
| return Math.sqrt(Math.pow(x1 - x0, 2) + Math.pow(y1 - y0, 2)); | |
| }, | |
| sign: function(value) { |
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