function random_seed(seed, max = 2) {
    var x = Math.abs(Math.round(Math.sin(seed) * max));
    return x;
}
no_ones = 0
no_zeros = 0
function range(start, stop, step=1) {
    var a = [start], b = start;
    while (b < stop) {
        a.push(b += step || 1);
    }
    return a;
}

range(0,10000000).forEach((r,i) => {
  if(random_seed(Math.random()) == 0) {
  no_zeros++
  } else if(random_seed(Math.random()) == 1) {
  no_ones++
  }
})

console.log(`ratio: ${no_zeros/no_ones}`)