dom scrollX scrollY innerWidth cilentWidth

            function getScroll(){
                return {
                    x:window.pageXOffset?window.pageXOffset:document.body.scrollLeft+document.documentElement.scrollLeft,
                    y:window.pageYOffset?window.pageYOffset:document.body.scrollTop+document.documentElement.scrollTop,
                }
            }

            function getViewportWH(){
                if(window.innerWidth){
                    return {
                        w:window.innerWidth,
                        h:window.innerHeight,
                    }
                }else{
                    if(document.compatMode==='BackCompat'){
                        return {
                            w:document.body.clientWidth,
                            h:document.body.clientHeight,
                        }
                    }else{
                        return {
                            w:document.documentElement.clientWidth,
                            h:document.documentElement.clientHeight,
                        }
                    }
                }

            }
            console.log(getViewportWH())

标签：body,return,documentElement,innerWidth,scrollY,window,cilentWidth,document
来源： https://www.cnblogs.com/howhy/p/15796892.html