The POSITIVE_INFINITY property represents a positive infinity number.
It is returned when a calculation returns a positive number greater than the largest number in JavaScript.
<html> <body> <script language="JavaScript"> <!-- if((Math.exp(999)) <= Number.POSITIVE_INFINITY_){ document.write("This is less than positive infinity"); } else{ document.write('This is greater than POSITIVE_INFINITY"); } --> </script> </body> </html>