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@eligrey
eligrey / object-watch.js
Created April 30, 2010 01:38
object.watch polyfill in ES5
/*
* object.watch polyfill
*
* 2012-04-03
*
* By Eli Grey, http://eligrey.com
* Public Domain.
* NO WARRANTY EXPRESSED OR IMPLIED. USE AT YOUR OWN RISK.
*/
@cuppster
cuppster / node-express-cors-middleware.js
Created April 9, 2012 16:02
express.js middleware to support CORS pre-flight requests
app.use(express.methodOverride());
// ## CORS middleware
//
// see: http://stackoverflow.com/questions/7067966/how-to-allow-cors-in-express-nodejs
var allowCrossDomain = function(req, res, next) {
res.header('Access-Control-Allow-Origin', '*');
res.header('Access-Control-Allow-Methods', 'GET,PUT,POST,DELETE');
res.header('Access-Control-Allow-Headers', 'Content-Type, Authorization');
@adnbr
adnbr / max7219-basic.c
Last active November 23, 2023 23:09
Simple AVR code for using a MAX7219 7-segment display driver
/* MAX7219 Interaction Code
* ---------------------------
* For more information see
* http://www.adnbr.co.uk/articles/max7219-and-7-segment-displays
*
* 668 bytes - ATmega168 - 16MHz
*/
// 16MHz clock
#define F_CPU 16000000UL
@MohamedAlaa
MohamedAlaa / tmux-cheatsheet.markdown
Last active July 4, 2024 17:58
tmux shortcuts & cheatsheet

tmux shortcuts & cheatsheet

start new:

tmux

start new with session name:

tmux new -s myname
@Kartones
Kartones / postgres-cheatsheet.md
Last active July 2, 2024 22:38
PostgreSQL command line cheatsheet

PSQL

Magic words:

psql -U postgres

Some interesting flags (to see all, use -h or --help depending on your psql version):

  • -E: will describe the underlaying queries of the \ commands (cool for learning!)
  • -l: psql will list all databases and then exit (useful if the user you connect with doesn't has a default database, like at AWS RDS)
@LucasRoesler
LucasRoesler / middleware.py
Last active June 27, 2023 17:01
A Django middleware that process JSON data into the appropriate GET or POST variable. I use this with AngularJS, by default POST requests are sent as JSON instead of the urlencoded data expected by Django.
class JSONMiddleware(object):
"""
Process application/json requests data from GET and POST requests.
"""
def process_request(self, request):
if 'application/json' in request.META['CONTENT_TYPE']:
# load the json data
data = json.loads(request.body)
# for consistency sake, we want to return
# a Django QueryDict and not a plain Dict.
@staltz
staltz / introrx.md
Last active July 4, 2024 10:11
The introduction to Reactive Programming you've been missing
@alexhawkins
alexhawkins / nativeJavaScript.js
Last active April 28, 2024 08:52
Implementation of Native JavaScript Methods (forEach, Map, Filter, Reduce, Every, Some)
'use strict';
/*****************NATIVE forEACH*********************/
Array.prototype.myEach = function(callback) {
for (var i = 0; i < this.length; i++)
callback(this[i], i, this);
};
//tests
@paulirish
paulirish / what-forces-layout.md
Last active July 5, 2024 08:26
What forces layout/reflow. The comprehensive list.

What forces layout / reflow

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.

Element APIs

Getting box metrics
  • elem.offsetLeft, elem.offsetTop, elem.offsetWidth, elem.offsetHeight, elem.offsetParent
" Make IE Better Compatible "
<!--[if IE]>
<script src="http://html5shim.googlecode.com/svn/trunk/html5.js"></script>
<![endif]-->
======================================================
IE6 Only
==================
_selector {...}