Console.error()
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.
Outputs an error message to the Web Console.
Note: This feature is available in Web Workers.
Syntax
JavaScript
Copy Code
console.error(obj1 [, obj2, ..., objN]); console.error(msg [, subst1, ..., substN]); console.exception(obj1 [, obj2, ..., objN]); console.exception(msg [, subst1, ..., substN]);
Note: console.exception()
is an alias for console.error()
; they are functionally identical.
Parameters
obj1
...objN
- A list of JavaScript objects to output. The string representations of each of these objects are appended together in the order listed and output.
msg
- A JavaScript string containing zero or more substitution strings.
subst1
...substN
- JavaScript objects with which to replace substitution strings within
msg
. This gives you additional control over the format of the output.
See Outputting text to the console in the documentation of console
for details.
Specifications
Specification | Status | Comment |
---|---|---|
Console API The definition of 'console.error()' in that specification. |
Editor's Draft | Initial definition |
Browser compatibility
Feature | Chrome | Firefox (Gecko) | Internet Explorer | Opera | Safari |
---|---|---|---|---|---|
Basic support | (Yes) | 4.0 (2.0) | 8 | (Yes) | (Yes) |
Substitution strings | (Yes) | 9.0 (9.0) | ? | ? | ? |
console.exception alias |
Not supported | 28.0 (28.0) | Not supported | Not supported | Not supported |
Available in workers | ? | 38.0 (38.0) | ? | ? | ? |
Feature | Android | Firefox Mobile (Gecko) | IE Mobile | Opera Mobile | Safari Mobile |
---|---|---|---|---|---|
Basic support | (Yes) | 4.0 (2.0) | ? | ? | ? |
Substitution strings | ? | 9.0 (9.0) | ? | ? | ? |
console.exception alias |
Not supported | 28.0 (28.0) | Not supported | Not supported | Not supported |
Available in workers | ? | 38.0 (38.0) | ? | ? | ? |
See also
- Opera Dragonfly documentation: Console
- MSDN: Using the F12 Tools Console to View Errors and Status
- Chrome Developer Tools: Using the Console
License
© 2016 Mozilla Contributors
Licensed under the Creative Commons Attribution-ShareAlike License v2.5 or later.
https://developer.mozilla.org/en-us/docs/web/api/console/error