Supported methods were originally:
console.log()console.error()console.warn()console.info()
Newer versions of WebKit also add the following methods making the WebKit console API almost identical to Firebug’s console API:
console.count()console.debug()console.profileEnd()console.trace()console.dir()console.dirxml()console.assert()console.time()console.profile()console.timeEnd()console.group()console.groupEnd()
(New information based on the WebKit nightly build WebKit-SVN-r37126, at the time of writing these methods aren’t available in Safari)