Console.profile()

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.

Starts recording a performance profile (for example, the Firefox performance tool).

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() to see how this argument is interpreted.

To stop recording call Console.profileEnd().

Note: This feature is available in Web Workers.

Syntax

console.profile(profileName);

Parameters

profileName
The name to give the profile. Optional.

Browser compatibility

Update compatibility data on GitHub
DesktopMobile
ChromeEdgeFirefoxInternet ExplorerOperaSafariAndroid webviewChrome for AndroidFirefox for AndroidOpera for AndroidSafari on iOSSamsung Internet
profile
ExperimentalNon-standard
Chrome Full support 4Edge Full support 12Firefox Full support 16IE Full support 9Opera Full support 11Safari Full support 4WebView Android Full support ≤37Chrome Android Full support 18Firefox Android Full support 16Opera Android Full support 11Safari iOS Full support 3.2Samsung Internet Android Full support 1.0

Legend

Full support  
Full support
Experimental. Expect behavior to change in the future.
Experimental. Expect behavior to change in the future.
Non-standard. Expect poor cross-browser support.
Non-standard. Expect poor cross-browser support.

See also