ClearScript Library
ClearScript Library
ClearScript Library Reference
Microsoft.ClearScript
Undefined Class
Undefined Methods
Undefined Fields

# Undefined Class

Represents an undefined value.
Inheritance Hierarchy
SystemObject
Microsoft.ClearScriptUndefined
Namespace: Microsoft.ClearScript
Assembly: ClearScript.Core (in ClearScript.Core.dll) Version: 7.5.0
Syntax
C#
VB
C++
F#
Copy

    public class Undefined

    Public Class Undefined

    public ref class Undefined

    type Undefined = class end

The Undefined type exposes the following members.

Methods

| Name | Description
--- | --- | ---
| Equals | Determines whether the specified object is equal to the current object. (Inherited from Object)
| Finalize | Allows an object to try to free resources and perform other cleanup operations before it is reclaimed by garbage collection. (Inherited from Object)
| GetHashCode | Serves as the default hash function. (Inherited from Object)
| GetType | Gets the Type of the current instance. (Inherited from Object)
| MemberwiseClone | Creates a shallow copy of the current Object. (Inherited from Object)
| ToString | Returns a string that represents the current object. (Overrides ObjectToString)

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Fields

| Name | Description
--- | --- | ---
| Value | The sole instance of the Undefined class.

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Remarks
Some script languages support one or more special non-null values that represent nonexistent, missing, unknown, or undefined data. The ClearScript library maps such values to an instance of this class.
See Also

#### Reference

Microsoft.ClearScript Namespace
UndefinedImportValue

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