JS test screen resolution and screen size method

2020-03-29 23:58:33
OfStack

How to display your screen resolution and screen size with JS effects? See the following code:

 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd"> 
<html xmlns="http://www.w3.org/1999/xhtml"> 
<head> 
<meta http-equiv="Content-Type" content="text/html; charset=gb2312" /> 
<title>JS Test display resolution </title> 
</head> 
<body> 
<div style="width:1cm;" id="hutia"></div> 
<SCRIPT LANGUAGE="JavaScript"> 
document.write(' Your monitor resolution is :n' + screen.width + '*' + screen.height + ' pixels<br/>'); 
var ww = document.getElementById("hutia").offsetWidth, w = screen.width/ww, h = screen.height/ww, r = Math.round(Math.sqrt(w*w + h*h) / 2.54); 
document.write(' Your monitor size is :n' + (screen.width/ww).toFixed(1) + '*' + (screen.height/ww).toFixed(1) + ' cm, '+ r +' " <br/>'); 
</SCRIPT> 
</body> 
</html>