Error.prototype.lineNumber

by 3 contributors:

Non-standard
This feature is non-standard and is not on a standards track. Do not use it on production sites facing the Web: it will not work for every user. There may also be large incompatibilities between implementations and the behavior may change in the future.

The lineNumber property contains the line number in the file that raised this error.

Examples

Using lineNumber

var e = new Error('Could not parse input');
throw e;
console.log(e.lineNumber) // 2

Alternative example using error event

window.addEventListener('error', function(e) {
  console.log(e.lineno); // 5
});
var e = new Error('Could not parse input');
throw e;

This is standard and supported across Chrome, Firefox and likely more.

Specifications

Not part of any specification. Non-standard.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) [1] (Yes) Not supported Not supported Not supported
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support Not supported Not supported (Yes) Not supported Not supported Not supported

[1] On error object in handled errors.

See also

Document Tags and Contributors

Contributors to this page: fscholz, Mingun, paul.irish
Last updated by: fscholz,