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 a stack trace to the Web Console.

Note: This feature is available in Web Workers.

See Stack traces in the console documentation for details and examples.




Getting the result of console.trace() as a string

The Error.stack property produces the following strings for this example code:

try { var a = {}; a.debug(); } catch(ex) {console.log(ex.stack)}

will give in Chrome:

TypeError: Object #<Object> has no method 'debug'
    at eval at <anonymous> (unknown source)
    at eval (native)
    at Object._evaluateOn (unknown source)
    at Object._evaluateAndWrap (unknown source)
    at Object.evaluate (unknown source)

and in Firefox:

@ _firebugInjectedEvaluate("with(_FirebugCommandLine){try { var a = {}; a.debug() } catch(ex) {console.log(ex.stack)}\n};")
@ _firebugEvalEvent([object Event])


Specification Status Comment
Console API
The definition of 'console.trace()' in that specification.
Editor's Draft Initial definition

Browser compatibility

Feature Chrome Firefox (Gecko) Internet Explorer Opera Safari
Basic support (Yes) 10.0 (10.0) 11 (Yes) (Yes)
Available in workers (Yes) 38.0 (38.0) (Yes) (Yes) (Yes)
Feature Android Firefox Mobile (Gecko) IE Mobile Opera Mobile Safari Mobile
Basic support ? 10.0 (10.0) ? ? ?
Available in workers ? 38.0 (38.0) ? ? ?

See also