Error.prototype.lineNumber

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.lineNumber); // 5
});
var e = new Error('Could not parse input');
throw e;

This is not a standard feature and lacks widespread support. See the browser compatibility table below.

Specifications

Not part of any standard.

Browser compatibility

Report problems with this compatibility data on GitHub

	desktop						mobile						server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	WebView Android	Chrome Android	Firefox for Android	Opera Android	Safari on iOS	Samsung Internet	Deno	Node.js
`lineNumber` Non-standard	ChromeNo supportNo	EdgeNo supportNo	FirefoxFull support1	Internet ExplorerNo supportNo	OperaNo supportNo	SafariNo supportNo	WebView AndroidNo supportNo	Chrome AndroidNo supportNo	Firefox for AndroidFull support4	Opera AndroidNo supportNo	Safari on iOSNo supportNo	Samsung InternetNo supportNo	DenoNo supportNo	Node.jsNo supportNo

Full support: Full support
No support: No support
: Non-standard. Check cross-browser support before using.