返回[页宽,页高,可见区宽,可见区高]

本文主要是介绍返回[页宽,页高,可见区宽,可见区高]，希望对大家解决编程问题提供一定的参考价值，需要的开发者们随着小编来一起学习吧！

/*

返回[页宽,页高,可见区宽,可见区高]
*/
function getPageSize(){
var xScroll, yScroll;
if (window.innerHeight && window.scrollMaxY) {
   xScroll = document.body.scrollWidth;
   yScroll = window.innerHeight + window.scrollMaxY;
} else if (document.body.scrollHeight > document.body.offsetHeight){ // all but Explorer Mac
   xScroll = document.body.scrollWidth;
   yScroll = document.body.scrollHeight;
} else {
   xScroll = document.body.offsetWidth;
   yScroll = document.body.offsetHeight;
}

var windowWidth, windowHeight;
if (self.innerHeight) {
   windowWidth = self.innerWidth;
   windowHeight = self.innerHeight;
} else if (document.documentElement && document.documentElement.clientHeight) { // Explorer 6 Strict Mode
   windowWidth = document.documentElement.clientWidth;
   windowHeight = document.documentElement.clientHeight;
} else if (document.body) {
   windowWidth = document.body.clientWidth;
   windowHeight = document.body.clientHeight;
}

if(yScroll < windowHeight)
   pageHeight = windowHeight;
else  
   pageHeight = yScroll;

if(xScroll < windowWidth)
   pageWidth = windowWidth;
else
   pageWidth = xScroll;

arrayPageSize = new Array(pageWidth,pageHeight,windowWidth,windowHeight)
return arrayPageSize;
}

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