1-bmi.js

// Below are the steps for how BMI is calculated

// The BMI calculation divides an adult's weight in kilograms (kg) by their height in metres (m) squared.

// For example, if you weigh 70kg (around 11 stone) and are 1.73m (around 5 feet 8 inches) tall, you work out your BMI by:

// squaring your height: 1.73 x 1.73 = 2.99
// dividing 70 by 2.99 = 23.41
// Your result will be displayed to 1 decimal place, for example 23.4.

// You will need to implement a function that calculates the BMI of someone based off their weight and height

// Given someone's weight in kg and height in metres
// Then when we call this function with the weight and height
// It should return their Body Mass Index to 1 decimal place

//function calculateBMI(weight, height) {
    // return the BMI of someone based off their weight and height
// }

// Notes:
// BMI =  weight ÷ (height x height)                                        
// eg. BMI = 70kg ÷ (1.73m x 1.73)
// BMI = 70kg ÷ 2.99
// BMI = 23.41
// BMI = 23.4 (to 1 decimal place)

// I need to:
// 1. Square the height
// 2. Divide weight by squared height
// 3. Round the result to 1 decimal place
// 4. Return the result 

function calculateBMI(weight, height) {
    const bmi = weight / (height * height);
    return bmi.toFixed(1);
}

console.log(calculateBMI(70, 1.73));



//toFixed(1) tells JavaScript to round the number to 1 decimal place.