Web/JavaScript/Reference/Global objects/InternalError

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 InternalError object indicates an error that occurred internally in the JavaScript engine.

Example cases are mostly when something is too large, e.g.:

"too many switch cases",
"too many parentheses in regular expression",
"array initializer too large",
"too much recursion".

Constructor

InternalError(): Creates a new InternalError object.

Instance properties

InternalError.prototype.message: Error message. Inherited from Error.
InternalError.prototype.name: Error name. Inherited from Error.
InternalError.prototype.fileName: Path to file that raised this error. Inherited from Error.
InternalError.prototype.lineNumber: Line number in file that raised this error. Inherited from Error.
InternalError.prototype.columnNumber: Column number in line that raised this error. Inherited from Error.
InternalError.prototype.stack: Stack trace. Inherited from Error.

Examples

Too much recursion

This recursive function runs 10 times, as per the exit condition.

function loop(x) {
  if (x >= 10) // "x >= 10" is the exit condition
    return;
  // do stuff
  loop(x + 1); // the recursive call
}
loop(0);

Setting this condition to an extremely high value, won't work:

function loop(x) {
  if (x >= 1000000000000)
    return;
  // do stuff
  loop(x + 1);
}
loop(0);

// InternalError: too much recursion

For more information, see InternalError: too much recursion.

Specifications

Not part of any standard.

Browser compatibility

Update compatibility data on GitHub

	Desktop						Mobile						Server
	Chrome	Edge	Firefox	Internet Explorer	Opera	Safari	Android webview	Chrome for Android	Firefox for Android	Opera for Android	Safari on iOS	Samsung Internet	Node.js
`InternalError` Non-standard'	Chrome No support No	Edge No support No	Firefox Full support 1	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android Full support 4	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No	nodejs No support No
`InternalError()` constructor Non-standard'	Chrome No support No	Edge No support No	Firefox Full support 1	IE No support No	Opera No support No	Safari No support No	WebView Android No support No	Chrome Android No support No	Firefox Android Full support 4	Opera Android No support No	Safari iOS No support No	Samsung Internet Android No support No	nodejs No support No

Legend

Full support: Full support
No support: No support
Non-standard. Expect poor cross-browser support.': Non-standard. Expect poor cross-browser support.