javascript something
<html>
<head>
<title>== and ===</title>
<script type="text/javascript">
var x = 5;
var y = "5";
if(x == y){
alert("x == y is true");
} else{
alert("x == y is false");
}
if(x === y){
alert("x === y is true");
} else{
alert("x === y is false");
}
</script>
</head>
<body>
<div></div>
</body>
</html>
<html>
<head>
<title>Pratice</title>
<script type="text/javascript">
var x = 5;
var y = ++x;
var z = x++
document.write("x = "+x+"<br />");
document.write("y = "+y+"<br />");
document.write("z = "+z+"<br />");
</script>
</head>
<body>
<div></div>
</body>
</html>