Skip to content

Instantly share code, notes, and snippets.

View justim's full-sized avatar

Tim justim

  • Amsterdam, Netherlands
View GitHub Profile
@paulirish
paulirish / what-forces-layout.md
Last active March 29, 2024 10:00
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
@lastguest
lastguest / access_property.php
Last active January 24, 2024 09:18
PHP - Read/Write public/protected/private object property
<?php
// Access a property with no restrictions
function stole($object,$property){
$dict = (array)$object;
$class = get_class($object);
return isset($dict[$property])?
$dict[$property]:(isset($dict["\0*\0$property"])?
$dict["\0*\0$property"]:(isset($dict["\0$class\0$property"])?
$dict["\0$class\0$property"]:null));