Outputs an error message to the Web Console.

Note: This feature is available in Web Workers.


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.


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.
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.


Specification Status Comment
Console API
The definition of 'console.error()' in that specification.
Living Standard Initial definition

Browser compatibility

Update compatibility data on GitHub
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
errorChrome Full support 1Edge Full support 12Firefox Full support 4IE Full support 8Opera Full support 10.5Safari Full support 3WebView Android Full support 1Chrome Android Full support 18Firefox Android Full support 4Opera Android Full support 11Safari iOS Full support 1Samsung Internet Android Full support 1.0
Substitution stringsChrome Full support YesEdge Full support 12
Full support 12
Notes Before Edge 79, %c is not supported.
Notes Before Edge 79, %d outputs a 0 if the specified value isn't a number.
Firefox Full support 9IE Full support 10
Full support 10
Notes %c is not supported.
Notes %d outputs a 0 if the specified value isn't a number.
Opera ? Safari ? WebView Android Full support YesChrome Android Full support YesFirefox Android Full support 9Opera Android ? Safari iOS ? Samsung Internet Android Full support Yes


Full support  
Full support
Compatibility unknown  
Compatibility unknown
See implementation notes.
See implementation notes.

See also