Error : Object

An object thrown when an error occurs. 

There are several specific constructor functions for different types of 
error conditions: 
**EvalError**,
**RangeError**,
**ReferenceError**,
**SyntaxError**,
**TypeError**,
**URIError**,
**NativeError**.

Spec:
http://www.ecma-international.org/ecma-262/5.1/#sec-15.11

----
Error(message : String) : Error

Same as %%#new_Error_String|**new Error(message)**%%.

Spec:
http://www.ecma-international.org/ecma-262/5.1/#sec-15.11.1.1

----
new Error(message : String) : Error

Creates a new **Error** with the specified **message** that describes the error.

<example>
var divide = function(x, y) {
  if (y === 0) {
    throw new Error('divide by zero');
  }
  return x / y;
};

try {
  console.log(divide(10, 0)); 
}
catch (error) {
  console.log(error.name);
  console.log(error.message);
}
</example>

Spec:
http://www.ecma-international.org/ecma-262/5.1/#sec-15.11.2.1

----
prototype.name : String

The type of error.

<example>
try {
  foo; 
}
catch (error) {
  console.log(error.name);
}
</example>

Spec:
http://www.ecma-international.org/ecma-262/5.1/#sec-15.11.4.2

----
prototype.message : String

A human readable message that describes the error.

<example>
try {
  foo; 
}
catch (error) {
  console.log(error.message);
}
</example>

Spec:
http://www.ecma-international.org/ecma-262/5.1/#sec-15.11.4.3