Calculate BMI

/*
Write function bmi that calculates body mass index (bmi = weight / height2).

if bmi <= 18.5 return "Underweight"

if bmi <= 25.0 return "Normal"

if bmi <= 30.0 return "Overweight"

if bmi > 30 return "Obese"
*/

function bmi(weight, height) {

let number = weight / (height * height) 
                 
  if (number <= 18.5) {
 return "Underweight"
} else if (number <= 25.0){
  return "Normal"
  } else if (number <= 30.0){
  return "Overweight"
} else if (number > 30){
  return "Obese"
}
  }