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@pixeltrix
pixeltrix / time_vs_datatime.md
Last active February 18, 2024 19:20
When should you use DateTime and when should you use Time?

When should you use DateTime and when should you use Time?

It's a common misconception that [William Shakespeare][1] and [Miguel de Cervantes][2] died on the same day in history - so much so that UNESCO named April 23 as [World Book Day because of this fact][3]. However because England hadn't yet adopted [Gregorian Calendar Reform][4] (and wouldn't until [1752][5]) their deaths are actually 10 days apart. Since Ruby's Time class implements a [proleptic Gregorian calendar][6] and has no concept of calendar reform then there's no way to express this. This is where DateTime steps in:

>> shakespeare = DateTime.iso8601('1616-04-23', Date::ENGLAND)
=> Tue, 23 Apr 1616 00:00:00 +0000
>> cervantes = DateTime.iso8601('1616-04-23', Date::ITALY)
=> Sat, 23 Apr 1616 00:00:00 +0000
@acutmore
acutmore / README.md
Last active January 21, 2024 20:30
Emulating a 4-Bit Virtual Machine in (TypeScript\JavaScript) (just Types no Script)

A compile-time 4-Bit Virtual Machine implemented in TypeScript's type system. Capable of running a sample 'FizzBuzz' program.

Syntax emits zero JavaScript.

type RESULT = VM<
  [
    ["push", N_1],         // 1
    ["push", False],       // 2
 ["peek", _], // 3
@jakeonrails
jakeonrails / Ruby Notepad Bookmarklet
Created January 29, 2013 18:08
This bookmarklet gives you a code editor in your browser with a single click.
data:text/html, <style type="text/css">#e{position:absolute;top:0;right:0;bottom:0;left:0;}</style><div id="e"></div><script src="http://d1n0x3qji82z53.cloudfront.net/src-min-noconflict/ace.js" type="text/javascript" charset="utf-8"></script><script>var e=ace.edit("e");e.setTheme("ace/theme/monokai");e.getSession().setMode("ace/mode/ruby");</script>
@steipete
steipete / ios-xcode-device-support.sh
Last active December 12, 2023 03:36
Using iOS 15 devices with Xcode 12.5 (instead of Xcode 13)
# The trick is to link the DeviceSupport folder from the beta to the stable version.
# sudo needed if you run the Mac App Store version. Always download the dmg instead... you'll thank me later :)
# Support iOS 15 devices (Xcode 13.0) with Xcode 12.5:
sudo ln -s /Applications/Xcode-beta.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport/15.0 /Applications/Xcode.app/Contents/Developer/Platforms/iPhoneOS.platform/DeviceSupport
# Then restart Xcode and reconnect your devices. You will need to do that for every beta of future iOS versions
# (A similar approach works for older versions too, just change the version number after DeviceSupport)
@Jxck
Jxck / server.js
Created July 24, 2012 17:09
WebSocket Server Sample Impliment
// Reference
// http://tools.ietf.org/html/rfc6455
// http://www.w3.org/TR/2011/WD-websockets-20110929/
// https://github.com/einaros/ws
// https://github.com/Worlize/WebSocket-Node
// http://ja.wikipedia.org/wiki/WebSocket
// http://www.slideshare.net/You_Kinjoh/javascript-websocket P.68
// http://d.hatena.ne.jp/gtk2k/20120203/1328274962
var log = console.log.bind(console);
@CMCDragonkai
CMCDragonkai / angularjs_directive_attribute_explanation.md
Last active November 29, 2023 15:35
JS: AngularJS Directive Attribute Binding Explanation

AngularJS Directive Attribute Binding Explanation

When using directives, you often need to pass parameters to the directive. This can be done in several ways. The first 3 can be used whether scope is true or false. This is still a WIP, so validate for yourself.

  1. Raw Attribute Strings

    <div my-directive="some string" another-param="another string"></div>
@banksean
banksean / perlin-noise-classical.js
Created February 15, 2010 10:00
two Perlin noise generators in javascript. The simplex version is about 10% faster (in Chrome at least, haven't tried other browsers)
// Ported from Stefan Gustavson's java implementation
// http://staffwww.itn.liu.se/~stegu/simplexnoise/simplexnoise.pdf
// Read Stefan's excellent paper for details on how this code works.
//
// Sean McCullough banksean@gmail.com
/**
* You can pass in a random number generator object if you like.
* It is assumed to have a random() method.
*/
@lxneng
lxneng / gist:741932
Created December 15, 2010 13:21
install PostgreSQL 9 in Mac OSX via Homebrew
install PostgreSQL 9 in Mac OSX via Homebrew
Mac OS X Snow Leopard
System Version: Mac OS X 10.6.5
Kernel Version: Darwin 10.5.0
Install notes for PostgreSQL 9.0.1 install using Homebrew:
sh-3.2# brew install postgresql
@kstevens715
kstevens715 / _breadcrumbs.html.erb
Created May 16, 2012 00:47
Generates Twitter Bootstrap compatible breadcrumbs with the Crummy gem.
<% render_crumbs do |crumbs| %>
<ul class="breadcrumb">
<% crumbs.each_with_index do |crumb, index| %>
<li>
<% if index < crumbs.size - 1 %>
<%= link_to *crumb %>
<span class="divider">/</span>
<% else %>
<li class="active"><%= crumb[0] %></li>
<% end %>
@baopham
baopham / Monaco for Powerline.otf
Last active April 16, 2023 03:57
Patched font Monaco for OSX Vim-Powerline