I've been asking a lot of dumb questions today, so here's another: Do we have any decent tools to measure memory usage / allocation when running a Javascript pr

I've been asking a lot of dumb questions today, so here's another: Do we have any decent tools to measure memory usage / allocation when running a Javascript program? Once we start introducing these data structures we will have to figure out actual memory storing (16bit? 32bit? 64bit?) which obviously introduces another layer of complexity to "standardizing".