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JavaScript Infinity Constant

Function Reference JavaScript Functions

Definition and Usage

Infinity is a numeric value that represents positive infinity.

-Infinity is a numeric value that represents negative infinity.

Infinity is displayed when a number exceeds the upper limit of the floating point numbers, which is 1.7976931348623157E+10308.

-Infinity is displayed when a number exceeds the lower limit of the floating point numbers, which is -1.7976931348623157E+10308.

Example

Example

Display a number that exceeds the limit of the floating point numbers:

<script type="text/javascript">

var x=1.7976931348623157E+10308;
document.write(x + "<br />");

var y=-1.7976931348623157E+10308;
document.write(y);

</script>

The output of the code above will be:

Infinity
-Infinity

Try it yourself »

Function Reference JavaScript Functions

From http://www.w3schools.com (Copyright Refsnes Data)