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Javier Blanco Gutiérrez jbgutierrez

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@jbgutierrez
jbgutierrez / metaprograming_example.coffee
Created July 3, 2012 09:17
Metaprogramación con Coffescript
Function::hasProperties = (properties) ->
self = @
self.prototype.properties = {}
definePropertie = (key, value) ->
self.prototype.properties[key] = value
self.prototype[key] = (newValue) ->
@properties[key] = newValue
@
for key, value of properties
definePropertie key, value
@jbgutierrez
jbgutierrez / AClass.js
Created April 3, 2012 08:20
Idea para contextualizar las llamadas a console.log
var AClass = new Class({
Implements: [ExtendedLogger],
initialize: function() {
this.initLogger('AClass', {
skip: ['silentMethod'],
debug: true
});
this.silentMethod();
this.otherMethod();
},
@jbgutierrez
jbgutierrez / gist:2107616
Created March 19, 2012 11:02
Events flow (http://www.w3.org/TR/2000/REC-DOM-Level-2-Events-20001113/events.html#Events-flow)
<!DOCTYPE HTML>
<head>
<meta http-equiv="content-type" content="text/html; charset=utf-8">
<title>Events Flow</title>
<style type="text/css" media="screen">
div {
background-color: #ddd;
padding: 40px;
border: 1px solid white;
}
@jbgutierrez
jbgutierrez / media-query-ie-fallback.html
Created January 25, 2012 10:39
Media querys IE fallback
<!DOCTYPE html>
<html>
<head>
<meta charset=utf-8 />
<title>Media querys IE fallback</title>
<style>
p {
color: blue;
}
@jbgutierrez
jbgutierrez / gist:1501179
Created December 20, 2011 10:47
closures
var tmp = 1;
function foo(x) {
var tmp = 2;
return function (y) {
alert(x + y + (++tmp));
}
}
var bar = foo(3);
bar(tmp);
bar(tmp);
@jbgutierrez
jbgutierrez / gist:974079
Created May 16, 2011 08:14
Git history rewrite (fix a bad commit)
git tag bad HASH
git co bad
git commit --ammend
git rebase --onto HEAD bad master
git tag -d bad
@jbgutierrez
jbgutierrez / foobar_riddle.html
Created March 2, 2011 17:56
Acertijo javascript (explicación en http://bonsaiden.github.com/JavaScript-Garden/)
<!DOCTYPE HTML>
<head>
<title>FooBar spaguetti riddle</title>
<meta charset='utf-8'>
<script type="text/javascript" src="http://shjs.sourceforge.net/sh_main.js"></script>
<script src="http://shjs.sourceforge.net/lang/sh_javascript.js" type="text/javascript" charset="utf-8"></script>
<link rel="stylesheet" href="http://shjs.sourceforge.net/css/sh_the.css" type="text/css" media="screen" charset="utf-8">
<style type="text/css" media="screen">
@jbgutierrez
jbgutierrez / ruby-1.9-tips.rb
Created February 5, 2011 18:58 — forked from igrigorik/ruby-1.9-tips.rb
def tip(msg); puts; puts msg; puts "-"*100; end
#
# 30 Ruby 1.9 Tips, Tricks & Features:
# http://www.igvita.com/2011/02/03/new-ruby-19-features-tips-tricks/
#
tip "Upgrading to Ruby 1.9 is simple: rvm install 1.9.2 && rvm --default 1.9.2"
tip "Ruby 1.9 supports named captures in regular expressions!"
@jbgutierrez
jbgutierrez / gist:718934
Created November 28, 2010 13:34
video_test.rb
require 'test_helper'
class VideoTest < ActiveSupport::TestCase
test "should accept only valid urls" do
video = Video.new
assert(video.invalid?) # blank urls are not accepted
invalid_urls = # valid but not accepted
%w{
@jbgutierrez
jbgutierrez / gist:445126
Created June 19, 2010 18:30
Migración de servidor subversion con git
git config --global svn.addAuthorFrom true
git config --global svn.useLogAuthor true
git svn clone NEW_URL new
git svn clone ORIGINAL_URL original
cd original
git push ../new/.git master:refs/heads/original
cd ../new
git filter-branch --msg-filter 'sed -e /^git-svn-id:/d' original
echo `git rev-list original | tail -1` `git rev-list master | tail -1` >> .git/info/grafts
git merge original