The sign() function of the Math object accepts an integer number and returns its sign.(positive, negative)
Its Syntax is as follows
Math.sign();
<html>
<head>
<title>JavaScript Example</title>
</head>
<body>
<script type="text/javascript">
var result = Math.sign(-128);
document.write("Result: "+result);
</script>
</body>
</html>
Result: -1
