SOURCE

function getOther(nums)
{
  let str=nums.toString(2)
  let arr = str.split('')
  let newArr = []
  arr.forEach((item, index) => {
    if (item == '0') {
      newArr.push(1)
    }else{
      newArr.push(0)
    }
  })
  nums_bin= newArr.join('')
  nums_ten=parseInt(nums_bin,2)+1
  res=nums_ten*0.1-2*nums_ten*0.1
  return res.toFixed(1)
   
}

console.log(getOther(65136))