可视区的宽、高:clientWidth 、clientHeight
滚动距离:scrollTop
内容的实际高度:scrollHeight
HTML代码:
<body style="height:2000px;">
<div id="div1" style="width:100px; height:100px; border:1px solid red; padding:10px; margin:10px;">
<div style="width:100px; height:600px; background:#ccc;"></div>
</div>
</body>
JS代码:
// 可视区的宽、高
// alert(document.documentElement.clientWidth);
// alert(document.documentElement.clientHeight);
//滚动距离
document.onclick = function(){
// alert(document.documentElement.scrollTop); //IE/火狐支持
// alert(document.body.scrollTop); //仅Chrome支持
var scrollTop = document.documentElement.scrollTop || document.body.scrollTop;
// alert(scrollTop);
//scrollHeight : 内容实际宽高
var oDiv = document.getElementById('div1');
alert(oDiv.scrollHeight);
};
文档的高:document.body.offsetHeight
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<script>
window.onload = function() {
//offsetHeight
//alert( document.body.offsetHeight );
//ie : 如果内容没有可视区高,那么文档高就是可视区
// alert( document.documentElement.offsetHeight );
alert( document.body.offsetHeight );
}
</script>
</head>
<body style="margin:0">
sdfdsf
</body>
</html>
onscroll : 当滚动条滚动的时候触发
onresize : 当窗口大小发生变化的时候触发
<!DOCTYPE HTML>
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<title>无标题文档</title>
<script>
//onscroll : 当滚动条滚动的时候触发
var i = 0;
window.onscroll = function() {
document.title = i++;
}
//onresize : 当窗口大小发生变化的时候触发
window.onresize = function() {
document.title = i++;
}
</script>
</head>
<body style="height:2000px;">
</body>
</html>
来源:https://www.cnblogs.com/bokebi520/p/4320733.html