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
Using fileName
js
const e = new Error("Could not parse input");
throw e;
// e.fileName could look like "file://developer.mozilla.org/C:/example.html"
Specifications
Not part of any standard.