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JavaScript NaN Property

JavaScript Number Object


Definition and Usage

The NaN property is a special value representing a non-numeric value. This property is used to indicate that a value is not a number.

The Number object can be set to this value to indicate that it is not a numeric value.

Note: Use the isNaN() global function to determine if a value is NaN.

Syntax


Browser Support

All major browsers support the NaN property.


Technical Details

Return Value: NaN
JavaScript Version: 1.3
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JavaScript Number Object

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