A BMI calculator function that provides results in string format

Question

A BMI calculator function that provides results in string format

Currently, I am enrolled in an online course where one of the tasks given is to develop a BMI (body mass index) calculator. The objective is to create a program that can calculate a user's BMI and provide them with their specific BMI category based on the result.

In my attempt to tackle this problem, I initially implemented an if statement within my code. However, after testing it out, the validator flagged my solution as incorrect. Could someone kindly review my code to help pinpoint any potential errors?

var interpretation = "";

function bmiCalculator(weight, height) {
    var bmi = weight / Math.pow(height, 2);

    if (bmi < 18.5) {
        interpretation = "Your BMI is " + bmi + ", so you are underweight";
    } else if (bmi >= 18.5 && bmi <= 24.9) {
        interpretation = "Your BMI is " + bmi +", so you have a normal weight";
    } else {
        interpretation = "Your BMI is " + bmi + ", so you are overweight";
    }

   return interpretation;
}

javascript

Answer 1

Answer №1

To get the final output, you have to utilize Template strings or string concatenation to include the bmi value.

Here is a demonstration using Template strings:

var interpretation = "";

function calculateBMI(weight, height) {
    bmi = weight / Math.pow(height, 2);

    if (bmi < 18.5) {
        interpretation = `Your BMI is ${bmi}, indicating that you are underweight`;
    } else if (bmi >= 18.5 && bmi <= 24.9) {
        interpretation = `Your BMI is ${bmi}, which shows a normal weight range`;
    } else {
        interpretation = `Your BMI is ${bmi}, suggesting that you are overweight`;
    }

    return interpretation;
}

Your code can be enhanced further with this modification

function calculateBMI(weight, height) {
    let bmi = weight / Math.pow(height, 2);
    let interpretation = `Your BMI is ${bmi}, therefore you `
    if (bmi < 18.5) {
        interpretation += `are underweight`;
    } else if (bmi < 25) {
        interpretation += `have a normal weight`;
    } else {
        interpretation += `are overweight`;
    }

    return interpretation;
}

Answer 2

To get the final output, you have to utilize Template strings or string concatenation to include the bmi value.

Here is a demonstration using Template strings:

var interpretation = "";

function calculateBMI(weight, height) {
    bmi = weight / Math.pow(height, 2);

    if (bmi < 18.5) {
        interpretation = `Your BMI is ${bmi}, indicating that you are underweight`;
    } else if (bmi >= 18.5 && bmi <= 24.9) {
        interpretation = `Your BMI is ${bmi}, which shows a normal weight range`;
    } else {
        interpretation = `Your BMI is ${bmi}, suggesting that you are overweight`;
    }

    return interpretation;
}

Your code can be enhanced further with this modification

function calculateBMI(weight, height) {
    let bmi = weight / Math.pow(height, 2);
    let interpretation = `Your BMI is ${bmi}, therefore you `
    if (bmi < 18.5) {
        interpretation += `are underweight`;
    } else if (bmi < 25) {
        interpretation += `have a normal weight`;
    } else {
        interpretation += `are overweight`;
    }

    return interpretation;
}

Answer 3

Answer №2

In conclusion to the previous statements, here is a simple solution that achieves the same outcome:

function calculateBMI(weight, height) { 
  var bmi = weight/(height*height);
  var roundedBmi=bmi.toFixed(2);
  return `Your BMI is ${roundedBmi}, so you `+
       (bmi<18.5?'are underweight'
      : bmi<25  ?'have a normal weight'
      :          'are overweight'); }

I included rounding to two decimal places using .toFixed(2) since nobody needs an answer with such precise accuracy.

Although Math.pow(height,2) is theoretically correct, the direct multiplication height*height is more efficient and takes less effort to calculate.

(While it may not make a difference in this scenario, it can be significant when dealing with multiple iterations or large arrays.)

Answer 4

In conclusion to the previous statements, here is a simple solution that achieves the same outcome:

function calculateBMI(weight, height) { 
  var bmi = weight/(height*height);
  var roundedBmi=bmi.toFixed(2);
  return `Your BMI is ${roundedBmi}, so you `+
       (bmi<18.5?'are underweight'
      : bmi<25  ?'have a normal weight'
      :          'are overweight'); }

I included rounding to two decimal places using .toFixed(2) since nobody needs an answer with such precise accuracy.

Although Math.pow(height,2) is theoretically correct, the direct multiplication height*height is more efficient and takes less effort to calculate.

(While it may not make a difference in this scenario, it can be significant when dealing with multiple iterations or large arrays.)

Answer 5

Answer №3

After much trial and error, I finally cracked the code using this method:

function calculateBMI(weight, height) {
    var bmi = weight / (height * height);
    if (bmi > 24.9){
        return "Your BMI is " + bmi + ", indicating you are overweight.";
    }
    if (bmi >= 18.5 && bmi <= 24.9){
        return "Your BMI is " + bmi + ", suggesting a healthy weight.";
    }
    if (bmi < 18.5){
        return "Your BMI is " + bmi + ", meaning you are underweight.";
    }
}

It's fascinating how crucial the order of the if statements can be in situations like this!

Answer 6

After much trial and error, I finally cracked the code using this method:

function calculateBMI(weight, height) {
    var bmi = weight / (height * height);
    if (bmi > 24.9){
        return "Your BMI is " + bmi + ", indicating you are overweight.";
    }
    if (bmi >= 18.5 && bmi <= 24.9){
        return "Your BMI is " + bmi + ", suggesting a healthy weight.";
    }
    if (bmi < 18.5){
        return "Your BMI is " + bmi + ", meaning you are underweight.";
    }
}

It's fascinating how crucial the order of the if statements can be in situations like this!

A BMI calculator function that provides results in string format

Answer №1

Answer №2

Answer №3

Similar questions

Dynamically Inject HTML with Drag-and-Drop Interaction

What is the best way to pass a context to the function constructor?

Vue.js running locally does not trigger the ready function

Slow CSS :hover animations in the most recent release of Chrome

Combating React SetState Race Conditions with the Power of Promise.all

Changing the size of a responsive navigation bar with React and adjusting it based on the window.scrollY position switches between collapsed and un

the async function fails to run

Preserve the font awesome icon when the page is refreshed

Updating a div using PHP elements

Leveraging the On Keyup Function in Real-Time

What are some methods for extracting a value from a separate webpage and saving it as a variable in my code?

Storing user input as an object key in typescript: A comprehensive guide

What is the process to retrieve a function from a router javascript file using node.js?

Creating interactive JSON objects through the use of JavaScript and AngularJS

Intersecting object identification, fresh Function

When submitting the form for the zip code input, use an XMLHttpRequest to input the zip code and retrieve the corresponding city

Unable to retrieve the form from the website

Converting objects to arrays in Typescript: A step-by-step guide

Updating the quantity of a Stripe subscription in Node.js: A Step-by-Step Guide

Should custom directives be utilized for templating within AngularJS applications?