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Javascript Number - NEGATIVE_INFINITY

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This is a special numeric value representing a value less than Number.MIN_VALUE. This value is represented as "-Infinity". This value 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.


You can access this property using the following syntax:

var val = Number.NEGATIVE_INFINITY;


Here is an example showing usage of this property:

<script type="text/javascript">
function showValue()
   var smallNumber = (-Number.MAX_VALUE) * 2
   if (smallNumber == Number.NEGATIVE_INFINITY) {
      alert("Value of smallNumber : " + smallNumber );
<p>Click the following to see the result:</p>
<input type="button" value="Click Me" onclick="showValue();" />

This will produce following result:

Value of val : -Infinity

To understand it in better way you can Try it yourself.

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