Learn Form Validation by Building a Calorie Counter - Step 81

Tell us what’s happening:

I think I have the right code but I keep on getting an error message.

Your code so far

<!-- file: index.html -->

/* file: styles.css */

/* file: script.js */
// User Editable Region

function calculateCalories(e) {
  e.preventDefault();
  isError = false;

  const breakfastNumberInputs = document.querySelectorAll('#breakfast input[type=number]');
  const lunchNumberInputs = document.querySelectorAll('#lunch input[type=number]');
  const dinnerNumberInputs = document.querySelectorAll('#dinner input[type=number]');
  const snacksNumberInputs = document.querySelectorAll('#snacks input[type=number]');
  const exerciseNumberInputs = document.querySelectorAll('#exercise input[type=number]');

  const breakfastCalories = getCaloriesFromInputs(breakfastNumberInputs);
  const lunchCalories = getCaloriesFromInputs(lunchNumberInputs);
  const dinnerCalories = getCaloriesFromInputs(dinnerNumberInputs);
  const snacksCalories = getCaloriesFromInputs(snacksNumberInputs);
  const exerciseCalories = getCaloriesFromInputs(exerciseNumberInputs);
  const budgetCalories = getCaloriesFromInputs([budgetNumberInput]);

  if (isError) {
    return;
  }

  const consumedCalories = breakfastCalories + lunchCalories + dinnerCalories + snacksCalories;
  const remainingCalories = budgetCalories - consumedCalories + exerciseCalories;
  const surplusOrDeficit = remainingCalories < 0 ? 'Surplus' : 'Deficit';
  output.innerHTML = `<span class=surplusOrDeficit.toLowerCase()></span>`;
}

// User Editable Region

Your browser information:

User Agent is: Mozilla/5.0 (Macintosh; Intel Mac OS X 10_15_7) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/124.0.0.0 Safari/537.36

Challenge Information:

Learn Form Validation by Building a Calorie Counter - Step 81

1 Like

Remember, anything you put between the back ticks is interpreted as a string unless you tell JS to interpret it as an expression. Look at the code you have already written, specifically in the addEntry function to remind yourself of how to do that.

2 Likes

Thanks! Your response helped a lot.