This object is provided to create custom error codes for your application. The ECMA standard (edition 3) describes them as objects that are thrown as exceptions when a run-time error occurs.

These objects are passed as the first argument of the catch() function in a try ... catch structure where you can inspect them and deal with the error.

Example code:

   // Force an error condition

   myError = new Error(100, "My user defined error text")

   try

   {

      throw myError;

   }

   catch(anErr)

   {

      confirm(anErr.description);

   }

   finally

   {

      alert("Sorted");

   }

Cross-references:

ECMA 262 edition 3 - section - 15.1.4.9

ECMA 262 edition 3 - section - 15.11.1

ECMA 262 edition 3 - section - 15.11.2