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GlobalObject.isNaN Method

This API supports the .NET Framework infrastructure and is not intended to be used directly from your code.

Determines whether the specified number can be converted to a JScript number.

Namespace:  Microsoft.JScript
Assembly:  Microsoft.JScript (in Microsoft.JScript.dll)

[JSFunctionAttribute(JSFunctionAttributeEnum.None, JSBuiltin.Global_isNaN)]
public static bool isNaN(
	Object num


Type: System.Object

The number to check.

Return Value

Type: System.Boolean
true if num can be converted to a JScript number; otherwise, false.

.NET Framework

Supported in: 4.6, 4.5, 4, 3.5, 3.0, 2.0, 1.1

.NET Framework Client Profile

Supported in: 4, 3.5 SP1
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