JavaScript alternative

Is there any language similar to javascript but which can compile to binary?

>>28
Invisible block separators.Imagine such function 10 times larger.

function factorial(x)for i=1,x-1 do x=x*i end return x end
with separators.
//notice the difference
function factorial(x){for (i=1,x-1){ do x=x*i} end return x end}