[JavaScript] JavaScript Fundamentals – Part 2 Coding Challenge #3

Let's go back to Mark and John comparing their BMIs! This time, let's use objects to implement the calculations! Remember: BMI = mass / height * 2 = mass / (height height) (mass in kg and height in meter) Your tasks:

1. For each of them, create an object with properties for their full name, mass, and height (Mark Miller and John Smith)

2. Create a 'calcBMI' method on each object to calculate the BMI (the same method on both objects). Store the BMI value to a property, and also return it from the method

3. Log to the console who has the higher BMI and the full name and the respective BMI. Example: "John's BMI (28.3) is higher than Mark's (23.9)!"

Test data: Mark's weights 78 kg and is 1.69 m tall. John's weight 92 kg and is 1.95 m tall.

const mark = {
    fullName: 'Mark Miller',
    mass: 78,
    height: 1.69,
    calcBMI: function () {
        this.bmi = this.mass / this.height ** 2;
        return this.bmi;
    }
};

const john = {
    fullName: 'John Smith',
    mass: 92,
    height: 1.95,
    calcBMI: function () {
        this.bmi = this.mass / this.height ** 2;
        return this.bmi;
    }
}

mark.calcBMI();
john.calcBMI();
console.log(mark.bmi, john.bmi);

if (mark.bmi > john.bmi) {
    console.log(`${mark.fullName}'s BMI (${mark.bmi}) is higher than ${john.fullName}'s (${john.bmi})!`);
} else if (john.bmi > mark.bmi) {
    console.log(`${john.fullName}'s BMI (${john.bmi}) is higher than ${mark.fullName}'s (${mark.bmi})!`);
}

// another way
// console.log(mark.bmi > john.bmi ? `${mark.fullName}'s BMI (${mark.bmi}) is higher than ${john.fullName}'s (${john.bmi})!'` : `${john.fullName}'s BMI (${john.bmi}) is higher than ${mark.fullName}'s (${mark.bmi})!'`);