Error.prototype.toSource()

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.

Summary

The toSource() method returns code that could eval to the same error.

Syntax

e.toSource()

Description

Calling the toSource method of an Error instance (including NativeErrors ) will return a string containing the source code of the error. This string can be evaluated to create an (approximately) equal object. Naturally, the string containing the source follows the structure of the Error constructor. For example:

(newname(message,fileName,lineNumber))

where these attributes correspond to the respective properties of the error instance.

Be aware that the properties used by the toSource method in the creation of this string are mutable and may not accurately reflect the function used to create an error instance or the filename or line number where the actual error occurred.

Specifications

Not part of any standard. Implemented in JavaScript 1.3.

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support ? (Yes) ? ? ?
Feature Android Chrome for Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? ? (Yes) ? ? ?

See also

Document Tags and Contributors

Contributors to this page: evilpie, Sheppy, fscholz, Sevenspade, ethertank, chridal
Last updated by: fscholz,