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These instructions will get you a copy of the project up and running on your local machine for development and testing purposes. See deployment for notes on how to deploy the project on a live system.
// Here is a proposal for minimalist JavaScript classes, humbly offered. | |
// There are (at least) two different directions in which classes can be steered. | |
// If we go for a wholly new semantics and implementation, then fancier classical | |
// inheritance can be supported with parallel prototype chains for true inheritance | |
// of properties at both the class and instance level. | |
// If however, we keep current JavaScript prototype semantics, and add a form that | |
// can desugar to ES3, things must necessarily stay simpler. This is the direction | |
// I'm assuming here. |
var selector = 'img' // Replace this with the selector for the element you want to make transformable | |
jQuery.getScript('//ajax.googleapis.com/ajax/libs/jqueryui/1.10.3/jquery-ui.min.js', function() { | |
jQuery.getScript('//cdnjs.cloudflare.com/ajax/libs/numeric/1.2.6/numeric.min.js', function() { | |
(function() { | |
var $, applyTransform, getTransform, makeTransformable; | |
$ = jQuery; |
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.
elem.offsetLeft
, elem.offsetTop
, elem.offsetWidth
, elem.offsetHeight
, elem.offsetParent