InternalError - JavaScript 编辑

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

BCD tables only load in the browser

See also

• Error

• InternalError: too much recursion