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description Property (JavaScript)

Returns or sets the descriptive string associated with a specific error.

object.description [= stringExpression]
object

Required. Any instance of an Error object.

stringExpression

Optional. A string expression containing a description of the error.

The description property contains the error message string associated with a specific error. Use the value contained in this property to alert a user to an error.

The description and message properties provide the same functionality; the description property provides backward compatibility; the message property complies with the ECMA standard.

The following example illustrates the use of the description property.

try
{
// Cause an error:
    x = y   
}
catch(e)
{
// Prints "[object Error]":
    document.write(e)
    document.write (" ");
// Prints 5009:
    document.write((e.number & 0xFFFF))  
    document.write (" ");
// Prints "'y' is undefined":
    document.write(e.description);
    document.write (" ");
// Prints "'y' is undefined":
    document.write(e.message)
}

Supported in the following document modes: Quirks, Internet Explorer 6 standards, Internet Explorer 7 standards, Internet Explorer 8 standards, Internet Explorer 9 standards. See Version Information.

Applies To: Error Object (JavaScript)

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