Error: fileName

Non-standard: This feature is not standardized. We do not recommend using non-standard features in production, as they have limited browser support, and may change or be removed. However, they can be a suitable alternative in specific cases where no standard option exists.

The fileName data property of an Error instance contains the path to the file that raised this error.

Value

A string.

Property attributes of `Error: fileName`
Writable	yes
Enumerable	no
Configurable	yes

Description

This non-standard property contains the path to the file that raised this error. If called from a debugger context, the Firefox Developer Tools for example, "debugger eval code" is returned.

Examples

undefined

Using fileName

const e = new Error("Could not parse input");
throw e;
// e.fileName could look like "file:///C:/example.html"

Specifications

Not part of any standard.