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    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.


    Example: Using lineNumber

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

    Example: 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.


    Not part of any specification. Non-standard.

    Browser compatibility

    Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
    Basic support On error object in handled errors (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

    See also

    Document Tags and Contributors

    Contributors to this page: fscholz,, Mingun
    Last updated by: Mingun,