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JavaScript: The Definitive Guide

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Number.POSITIVE_INFINITY Constant

Name

Number.POSITIVE_INFINITY Constant---infinity

Availability

Navigator 3.0

Synopsis

Number.POSITIVE_INFINITY

Description

Number.POSITIVE_INFINITY is a special numeric value that is returned when an arithmetic operation or mathematical function generates a value greater than the largest representable number in JavaScript (i.e., greater than Number.MAX_VALUE).

JavaScript displays the POSITIVE_INFINITY value as Infinity. This value behaves mathematically like an infinity--for example, anything multiplied by infinity is infinity, and anything divided by infinity is zero.

Note that when numbers "underflow," i.e., when they become less than Number.MIN_VALUE, JavaScript converts them to zero.

See Also

"Number", "Number.NEGATIVE_INFINITY"


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Number.NEGATIVE_INFINITY Book Index Number.prototype

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