Daily Challenge #83 - Deodorant Evaporator

func evaporator(evapPerDay, threshold float64) int {
    days := 0
    fill := 100.0
    for fill >= threshold {
        days += 1
        fill -= (fill * evapPerDay / 100)
    }
    return days
}

const evaporator = (content, evapPerDay, threshold) => {
  let  outOfUseDays = 0, percentage = 100;  
  while (percentage > threshold) {
    percentage = percentage - percentage * (evapPerDay / 100);
    outOfUseDays += 1;
  }
  return outOfUseDays;
}
//console.log('evaporator --> ',evaporator('ml',7,2));

getDaysBeforeEvaporation : Float -> Float -> Int
getDaysBeforeEvaporation percentageBeforeUnusable percentageLostPerDay =
    let
        percentageBeforeUnusableClamped : Float
        percentageBeforeUnusableClamped =
            percentageBeforeUnusable
                |> clamp 1 100

        percentageLostPerDayClamped : Float
        percentageLostPerDayClamped =
            percentageLostPerDay
                |> clamp 1 100
    in
    floor <| (100 - percentageBeforeUnusableClamped) / percentageLostPerDayClamped

const evaporator = (netContent = 100, evapPerDay, threshold) => {
  let  nthDay = 0;  
  while (netContent >= threshold) {
    netContent -= (netContent * (evapPerDay / 100));
    nthDay++;
  }
  return nthDay;
}

function lifespan(evap_per_day, threshold) {
    let content = 100;
    let day = 0;
    while (fill >= threshold) {
        fill *= 1-(evap_per_day/100);
        day++;
    }
    return day;
}