ClearScript/ClearScript/Undefined.cs at master · orudge/ClearScript · GitHub

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// Licensed under the MIT license.

namespace Microsoft.ClearScript

{

/// <summary>

/// Represents an undefined value.

/// </summary>

/// <remarks>

/// Most script languages support one or more special values that represent nonexistent,

/// missing, unknown, or undefined data. The ClearScript library maps some such values to

/// <c>null</c>, and others to instances of this class.

/// </remarks>

public class Undefined

{

internal static readonly Undefined Value = new Undefined();

private Undefined()

{

}

#region Object overrides

/// <summary>

/// Returns a string that represents the current object.

/// </summary>

/// <returns>A string that represents the current object.</returns>

/// <remarks>

/// The <see cref="Undefined"/> version of this method returns "[undefined]".

/// </remarks>

public override string ToString()

{

return "[undefined]";

}

#endregion

}

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