Console console.log(val) // prints value console.dir(obj) // displays an interactive list of the properties console.assert(false, 'msg') // writes an error message to the console if the assertion is false console.clear() // clears the console if the environment allows console.count('msg') // logs the number of this count() calls has been called console.countReset('msg') // resets counter used with console.count() console.error('msg') // outputs an error message console.info('msg') // outputs an informational message console.warn('msg') // outputs a warning message console.table(objOrArr) // displays tabular data as a table console.trace(objOrMsg) // outputs a stack trace console.time(timerName) // starts a timer console.timeLog(timerName) // logs the current value of a timer console.timeEnd(timerEnd) // stops a timer