curriculum/challenges/english/blocks/learn-form-validation-by-building-a-calorie-counter/63c9e4d2ff41811dd640504f.md
It is time to start preparing your calculations. Start by declaring a consumedCalories variable, and assign it the sum of breakfastCalories, lunchCalories, dinnerCalories, and snacksCalories (note that order matters for the tests). Be sure to do this after your if statement.
Your function should have a consumedCalories variable.
assert.match(calculateCalories.toString(), /consumedCalories\s*=/);
Your consumedCalories variable should come after your if statement.
assert.isAbove(calculateCalories.toString().indexOf('consumedCalories'), calculateCalories.toString().indexOf('if'));
You should calculate the sum of breakfastCalories, lunchCalories, dinnerCalories, and snacksCalories, in order.
assert.match(calculateCalories.toString(), /breakfastCalories\s*\+\s*lunchCalories\s*\+\s*dinnerCalories\s*\+\s*snacksCalories\s*;?\s*$/m);
You should assign the sum of breakfastCalories, lunchCalories, dinnerCalories, and snacksCalories to consumedCalories.
assert.match(calculateCalories.toString(), /consumedCalories\s*=\s*breakfastCalories\s*\+\s*lunchCalories\s*\+\s*dinnerCalories\s*\+\s*snacksCalories\s*;?\s*$/m);
<!DOCTYPE html>
<html lang="en">
<head>
<meta charset="utf-8" />
<meta name="viewport" content="width=device-width, initial-scale=1.0" />
<link rel="stylesheet" href="styles.css" />
<title>Calorie Counter</title>
</head>
<body>
<main>
<h1>Calorie Counter</h1>
<div class="container">
<form id="calorie-counter">
<label for="budget">Budget</label>
<input
type="number"
min="0"
id="budget"
placeholder="Daily calorie budget"
required
/>
<fieldset id="breakfast">
<legend>Breakfast</legend>
<div class="input-container"></div>
</fieldset>
<fieldset id="lunch">
<legend>Lunch</legend>
<div class="input-container"></div>
</fieldset>
<fieldset id="dinner">
<legend>Dinner</legend>
<div class="input-container"></div>
</fieldset>
<fieldset id="snacks">
<legend>Snacks</legend>
<div class="input-container"></div>
</fieldset>
<fieldset id="exercise">
<legend>Exercise</legend>
<div class="input-container"></div>
</fieldset>
<div class="controls">
<span>
<label for="entry-dropdown">Add food or exercise:</label>
<select id="entry-dropdown" name="options">
<option value="breakfast" selected>Breakfast</option>
<option value="lunch">Lunch</option>
<option value="dinner">Dinner</option>
<option value="snacks">Snacks</option>
<option value="exercise">Exercise</option>
</select>
<button type="button" id="add-entry">Add Entry</button>
</span>
</div>
<div>
<button type="submit">
Calculate Remaining Calories
</button>
<button type="button" id="clear">Clear</button>
</div>
</form>
<div id="output" class="output hide"></div>
</div>
</main>
<script src="./script.js"></script>
</body>
</html>
:root {
--light-grey: #f5f6f7;
--dark-blue: #0a0a23;
--fcc-blue: #1b1b32;
--light-yellow: #fecc4c;
--dark-yellow: #feac32;
--light-pink: #ffadad;
--dark-red: #850000;
--light-green: #acd157;
}
body {
font-family: "Lato", Helvetica, Arial, sans-serif;
font-size: 18px;
background-color: var(--fcc-blue);
color: var(--light-grey);
}
h1 {
text-align: center;
}
.container {
width: 90%;
max-width: 680px;
}
h1,
.container,
.output {
margin: 20px auto;
}
label,
legend {
font-weight: bold;
}
.input-container {
display: flex;
flex-direction: column;
}
button {
cursor: pointer;
text-decoration: none;
background-color: var(--light-yellow);
border: 2px solid var(--dark-yellow);
}
button,
input,
select {
min-height: 24px;
color: var(--dark-blue);
}
fieldset,
label,
button,
input,
select {
margin-bottom: 10px;
}
.output {
border: 2px solid var(--light-grey);
padding: 10px;
text-align: center;
}
.hide {
display: none;
}
.output span {
font-weight: bold;
font-size: 1.2em;
}
.surplus {
color: var(--light-pink);
}
.deficit {
color: var(--light-green);
}
const calorieCounter = document.getElementById('calorie-counter');
const budgetNumberInput = document.getElementById('budget');
const entryDropdown = document.getElementById('entry-dropdown');
const addEntryButton = document.getElementById('add-entry');
const clearButton = document.getElementById('clear');
const output = document.getElementById('output');
let isError = false;
function cleanInputString(str) {
const regex = /[+-\s]/g;
return str.replace(regex, '');
}
function isInvalidInput(str) {
const regex = /\d+e\d+/i;
return str.match(regex);
}
function addEntry() {
const targetInputContainer = document.querySelector(`#${entryDropdown.value} .input-container`);
const entryNumber = targetInputContainer.querySelectorAll('input[type="text"]').length + 1;
const HTMLString = `
<label for="${entryDropdown.value}-${entryNumber}-name">Entry ${entryNumber} Name</label>
<input type="text" id="${entryDropdown.value}-${entryNumber}-name" placeholder="Name" />
<label for="${entryDropdown.value}-${entryNumber}-calories">Entry ${entryNumber} Calories</label>
<input
type="number"
min="0"
id="${entryDropdown.value}-${entryNumber}-calories"
placeholder="Calories"
/>`;
targetInputContainer.insertAdjacentHTML('beforeend', HTMLString);
}
--fcc-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;
}
}
--fcc-editable-region--
function getCaloriesFromInputs(list) {
let calories = 0;
for (const item of list) {
const currVal = cleanInputString(item.value);
const invalidInputMatch = isInvalidInput(currVal);
if (invalidInputMatch) {
alert(`Invalid Input: ${invalidInputMatch[0]}`);
isError = true;
return null;
}
calories += Number(currVal);
}
return calories;
}
addEntryButton.addEventListener("click", addEntry);