1,HTML source code£º
<![CDATA[
<html>
<head>
<title>How to use Float</title>
</head>
<body>
<script src="jsjava.js"></script>
<script>
var f=Float.checkValid("sdfds");
document.write(f+"<br>");
var f2=Float.isInfinite(Math.pow(2,3000));
document.write(f2+"<br>");
try{
var f3=Float.parseFloat("565465464564seee56");
}catch(e){
document.write(e.message);
}
</script>
</body>
</html>
]]>
2,The display:
false
true
Not a number Exception!