paulirish

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

nuthinking

//
//  UIView+CustomTimingFunction.h
//  Instants
//
//  Created by Christian Giordano on 16/10/2013.
//  Copyright (c) 2013 Christian Giordano. All rights reserved.
//

#import <UIKit/UIKit.h>