Sample code: ``` console.time('test'); console.log("this is a log test"); console.info("infoooo"); console.error("errorrrr"); console.log("test formatting: %.2f", 1.43234); console.log("test", "more", "params"); console.assert((2 == 1), 'assertion failed:', 'error'); console.warn('calling trace'); console.trace(); console.dump(console); console.timeEnd('test'); ```