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Number Constants (JavaScript)

The following number constants are properties of the Number object.

You do not have to create Number object to access these constants.

Constant

Value returned

Number.MAX_VALUE

The largest number that can be represented in JavaScript. Equal to approximately 1.79E+308.

Number.MIN_VALUE

The closest number to zero that can be represented in JavaScript. Equal to approximately 5.00E-324.

Number.NaN

A value that is not a number.

In equality comparisons, NaN does not equal any value, including itself. To test whether a value is equivalent to NaN, use the isNaN function.

Number.NEGATIVE_INFINITY

A value that is less than the largest negative number that can be represented in JavaScript.

JavaScript displays NEGATIVE_INFINITY values as -infinity.

Number.POSITIVE_INFINITY

A value greater than the largest number that can be represented in JavaScript.

JavaScript displays POSITIVE_INFINITY values as infinity.

Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards, Internet Explorer 10 standards, Internet Explorer 11 standards. Also supported Store apps (Windows 8 and Windows Phone 8.1). See Version Information.

Applies To: Number Object (JavaScript)

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