Steffen Dietz stffndtz

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

	<?php
	// create srcset images for kirby
	function img($image, $options = array()) {
	// defaults
	$defaults = array(
	"alt" => $image->title()->or(''),
	"widths" => [100, 100, 100],
	"class" => "",
	"lazy" => false,
	);

	//
	// AMScanViewController.h
	//
	//
	// Created by Alexander Mack on 11.10.13.
	// Copyright (c) 2013 ama-dev.com. All rights reserved.
	//

	#import <UIKit/UIKit.h>
	#import <AVFoundation/AVFoundation.h>