<!DOCTYPE html>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=UTF-8" />
<title>每天一个JavaScript实例-确定web页面的区域</title>
<script>
function size(){
var width = 0;
var height = 0;
if(!window.innerWidth){
width = (document.documentElement.clientWidth ? document.documentElement.clientWidth:document.body.clientWidth);
height = (document.documentElement.clientHeight ? document.documentElement.clientHeight:document.body.clientHeight);
}else{
width = window.innerWidth;
height = window.innerHeight;
}
return {width,height:height};
}
window.onload = function(){
var viewPort = size();
var w = viewPort.width;
var h = viewPort.height;
console.log(w);
console.log(h);
}
</script>
</head>
<body>
<div id = "date">
</div>
</body>
</html>
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