This is a special numeric value representing a value less than Number.MIN_VALUE. This value is represented as "-Infinity". It resembles an infinity in its mathematical behavior. For example, anything multiplied by NEGATIVE_INFINITY is NEGATIVE_INFINITY, and anything divided by NEGATIVE_INFINITY is zero.
Because NEGATIVE_INFINITY is a constant, it is a read-only property of Number.
The syntax to use NEGATIVE_INFINITY is as follows −
var val = Number.NEGATIVE_INFINITY;
Try the following example.
<html> <head> <script type="text/javascript"> <!-- function showValue() { var smallNumber = (-Number.MAX_VALUE) * 2 if (smallNumber == Number.NEGATIVE_INFINITY) { alert("Value of smallNumber : " + smallNumber ); } } //--> </script> </head> <body> <p>Click the following to see the result:</p> <form> <input type="button" value="Click Me" onclick="showValue();" /> </form> </body> </html>
Value of smallNumber