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@necolas
necolas / snippet.js
Created June 14, 2011 20:36
Optimised async loading of cross-domain scripts
/*
* Updated to use the function-based method described in http://www.phpied.com/social-button-bffs/
* Better handling of scripts without supplied ids.
*
* N.B. Be sure to include Google Analytics's _gaq and Facebook's fbAsyncInit prior to this function.
*/
(function(doc, script) {
var js,
fjs = doc.getElementsByTagName(script)[0],
@jlong
jlong / uri.js
Created April 20, 2012 13:29
URI Parsing with Javascript
var parser = document.createElement('a');
parser.href = "http://example.com:3000/pathname/?search=test#hash";
parser.protocol; // => "http:"
parser.hostname; // => "example.com"
parser.port; // => "3000"
parser.pathname; // => "/pathname/"
parser.search; // => "?search=test"
parser.hash; // => "#hash"
parser.host; // => "example.com:3000"
@cowboy
cowboy / HEY-YOU.md
Last active May 16, 2024 13:31
jQuery Tiny Pub/Sub: A really, really, REALLY tiny pub/sub implementation for jQuery.
@paulirish
paulirish / what-forces-layout.md
Last active May 20, 2024 06:33
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