Why does the specification state "Error instances have no special properties"?
The ES5 specification states:
| 15.11.5 Properties of Error Instances
| Error instances inherit properties from the Error prototype
| object and their [[Class]] internal property value is
| "Error". Error instances have no special properties.
However error instances do have an own property: message. The value
obviously is not shared in the prototype (that would be a mistake).
Why does the specification state "Error instances have no special properties"?
The ES5 specification states:
| 15.11.5 Properties of Error Instances
| Error instances inherit properties from the Error prototype
| object and their [[Class]] internal property value is
| "Error". Error instances have no special properties.
However error instances do have an own property: message. The value
obviously is not shared in the prototype (that would be a mistake).
javascript: alert(new Error("foo").hasOwnProperty("message"));
true
Garrett
Why does the specification state "Error instances have no special properties"?
The ES5 specification states:
| 15.11.5 Properties of Error Instances | Error instances inherit properties from the Error prototype | object and their [[Class]] internal property value is | "Error". Error instances have no special properties.
However error instances do have an own property: message. The value obviously is not shared in the prototype (that would be a mistake).
javascript: alert(new Error("foo").hasOwnProperty("message"));
true
Garrett
Why does the specification state "Error instances have no special properties"? The ES5 specification states: | 15.11.5 Properties of Error Instances | Error instances inherit properties from the Error prototype | object and their [[Class]] internal property value is | "Error". Error instances have no special properties. However error instances do have an own property: message. The value obviously is not shared in the prototype (that would be a mistake). javascript: alert(new Error("foo").hasOwnProperty("message")); true Garrett