tamp() ` ](/en-US/docs/Web/API/console/timestamp_static) Non-standard 
    21. [ ` trace() ` ](/en-US/docs/Web/API/console/trace_static)
    22. [ ` warn() ` ](/en-US/docs/Web/API/console/warn_static)
  4. Related pages for Console API 
    1. [ ` Window.console ` ](/en-US/docs/Web/API/Window/console)
    2. [ ` console ` ](/en-US/docs/Web/API/console)

##  In this article

  * Syntax 
  * Browser compatibility 
  * See also 

#  console: profile() static method

**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.

**Note:** This feature is available in [ Web Workers ](/en-
US/docs/Web/API/Web_Workers_API) .

The **` console.profile() ` ** static method starts recording a performance
profile (for example, the [ Firefox performance tool ](https://firefox-source-
docs.mozilla.org/devtools-user/performance/index.html) ).

You can optionally supply an argument to name the profile and this then
enables you to stop only that profile if multiple profiles being recorded. See
[ ` console.profileEnd() ` ](/en-US/docs/Web/API/console/profileend_static
"console.profileEnd\(\)") to see how this argument is interpreted.

To stop recording call [ ` console.profileEnd() ` ](/en-
US/docs/Web/API/console/profileend_static "console.profileEnd\(\)") .

##  Syntax

js

    
    
    profile(profileName)
    

###  Parameters

` profileName ` Optional

    

The name to give the profile.

###  Return value

None ( [ ` undefined ` ](/en-
US/docs/Web/JavaScript/Reference/Global_Objects/undefined) ).

##  Browser compatibility

BCD tables only load in the browser  with JavaScript enabled. Enable
JavaScript to view data.

##  See also

  * [ ` console.profileEnd() ` ](/en-US/docs/Web/API/console/profileend_static "console.profileEnd\(\)")

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