Error.prototype.name
The name
data property of Error.prototype
is shared by all Error
instances. It represents the name for the type of error. For Error.prototype.name
, the initial value is "Error"
. Subclasses like TypeError
and SyntaxError
provide their own name
properties.
Value
A string. For Error.prototype.name
, the initial value is "Error"
.
Property attributes of Error.prototype.name |
|
---|---|
Writable | yes |
Enumerable | no |
Configurable | yes |
Description
By default, Error
instances are given the name "Error". The name
property, in addition to the message
property, is used by the Error.prototype.toString()
method to create a string representation of the error.
Examples
Throwing a custom error
js
const e = new Error("Malformed input"); // e.name is 'Error'
e.name = "ParseError";
throw e;
// e.toString() would return 'ParseError: Malformed input'
Specifications
Specification |
---|
ECMAScript Language Specification # sec-error.prototype.name |
Browser compatibility
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