Last time we were looking at the web/javascript based cross-platform tools there seemed to be lots of issues with memory handling (running out of memory to be s

Last time we were looking at the web/javascript based cross-platform tools there seemed to be lots of issues with memory handling (running out of memory to be specific). Is this still the case or, even, has this ever been a major issue for big applications? Maybe somebody who has used these tools successfully can provide some more information.