Sure, you can hint with OR: `x = x | 0; x = (x + x) | 0;`. Bitwise operators always work on 32 bit integers in js. I'm not sure whether the js vms actually need

Sure, you can hint with OR: `x = x | 0; x = (x + x) | 0;`. Bitwise operators always work on 32 bit integers in js. I'm not sure whether the js vms actually need or use this information.