Error: 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
data property of an Error
instance contains the line number in the file that raised this error.
Value
A positive integer.
Property attributes of Error: lineNumber | |
---|---|
Writable | yes |
Enumerable | no |
Configurable | yes |
Examples
Using lineNumber
js
try {
throw new Error("Could not parse input");
} catch (err) {
console.log(err.lineNumber); // 2
}
Alternative example using error event
js
window.addEventListener("error", (e) => {
console.log(e.lineNumber); // 5
});
const 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 GitHubdesktop | mobile | server | ||||||||||||
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lineNumber |
Legend
Tip: you can click/tap on a cell for more information.
- Full support
- Full support
- No support
- No support
- Non-standard. Check cross-browser support before using.
The compatibility table on this page is generated from structured data. If you'd like to contribute to the data, please check out https://github.com/mdn/browser-compat-data and send us a pull request.