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'Calorie Counter' **feat: step_90 declare empty function 'clearForm'
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‎README.md‎

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‎images/previews/preview_step90.png‎

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‎steps/README.md‎

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‎steps/__90__step__/README.md‎

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‎steps/__90__step__/index.html‎

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<!DOCTYPE html>
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<html lang="en">
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<head>
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<meta charset="utf-8" />
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<meta name="viewport" content="width=device-width, initial-scale=1.0" />
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<link rel="stylesheet" href="styles.css" />
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<title>Calorie Counter</title>
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</head>
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<body>
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<main>
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<h1>Calorie Counter</h1>
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<div class="container">
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<form id="calorie-counter">
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<label for="budget">Budget</label>
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<input
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type="number"
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min="0"
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id="budget"
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placeholder="Daily calorie budget"
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required
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/>
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<fieldset id="breakfast">
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<legend>Breakfast</legend>
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<div class="input-container"></div>
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</fieldset>
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<fieldset id="lunch">
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<legend>Lunch</legend>
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<div class="input-container"></div>
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</fieldset>
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<fieldset id="dinner">
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<legend>Dinner</legend>
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<div class="input-container"></div>
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</fieldset>
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<fieldset id="snacks">
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<legend>Snacks</legend>
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<div class="input-container"></div>
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</fieldset>
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<fieldset id="exercise">
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<legend>Exercise</legend>
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<div class="input-container"></div>
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</fieldset>
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<div class="controls">
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<span>
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<label for="entry-dropdown">Add food or exercise:</label>
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<select id="entry-dropdown" name="options">
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<option value="breakfast" selected>Breakfast</option>
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<option value="lunch">Lunch</option>
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<option value="dinner">Dinner</option>
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<option value="snacks">Snacks</option>
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<option value="exercise">Exercise</option>
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</select>
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<button type="button" id="add-entry">Add Entry</button>
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</span>
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</div>
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<div>
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<button type="submit">Calculate Remaining Calories</button>
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<button type="button" id="clear">Clear</button>
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</div>
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</form>
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<div id="output" class="output hide"></div>
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</div>
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</main>
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<script src="./script.js"></script>
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</body>
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</html>

‎steps/__90__step__/script.js‎

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const calorieCounter = document.getElementById('calorie-counter');
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const budgetNumberInput = document.getElementById('budget');
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const entryDropdown = document.getElementById('entry-dropdown');
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const addEntryButton = document.getElementById('add-entry');
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const clearButton = document.getElementById('clear');
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const output = document.getElementById('output');
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let isError = false;
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function cleanInputString(str) {
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const regex = /[+-\s]/g;
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return str.replace(regex, '');
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}
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function isInvalidInput(str) {
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const regex = /\d+e\d+/i;
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return str.match(regex);
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}
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function addEntry() {
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const targetInputContainer = document.querySelector(`#${entryDropdown.value} .input-container`);
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const entryNumber = targetInputContainer.querySelectorAll('input[type="text"]').length + 1;
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const HTMLString = `
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<label for="${entryDropdown.value}-${entryNumber}-name">Entry ${entryNumber} Name</label>
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<input type="text" id="${entryDropdown.value}-${entryNumber}-name" placeholder="Name" />
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<label for="${entryDropdown.value}-${entryNumber}-calories">Entry ${entryNumber} Calories</label>
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<input
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type="number"
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min="0"
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id="${entryDropdown.value}-${entryNumber}-calories"
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placeholder="Calories"
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/>`;
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targetInputContainer.insertAdjacentHTML('beforeend', HTMLString);
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}
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function calculateCalories(e) {
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e.preventDefault();
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isError = false;
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const breakfastNumberInputs = document.querySelectorAll("#breakfast input[type='number']");
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const lunchNumberInputs = document.querySelectorAll("#lunch input[type='number']");
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const dinnerNumberInputs = document.querySelectorAll("#dinner input[type='number']");
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const snacksNumberInputs = document.querySelectorAll("#snacks input[type='number']");
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const exerciseNumberInputs = document.querySelectorAll("#exercise input[type='number']");
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const breakfastCalories = getCaloriesFromInputs(breakfastNumberInputs);
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const lunchCalories = getCaloriesFromInputs(lunchNumberInputs);
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const dinnerCalories = getCaloriesFromInputs(dinnerNumberInputs);
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const snacksCalories = getCaloriesFromInputs(snacksNumberInputs);
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const exerciseCalories = getCaloriesFromInputs(exerciseNumberInputs);
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const budgetCalories = getCaloriesFromInputs([budgetNumberInput]);
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if (isError) {
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return;
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}
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const consumedCalories = breakfastCalories + lunchCalories + dinnerCalories + snacksCalories;
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const remainingCalories = budgetCalories - consumedCalories + exerciseCalories;
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const surplusOrDeficit = remainingCalories < 0 ? 'Surplus' : 'Deficit';
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output.innerHTML = `
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<span class="${surplusOrDeficit.toLowerCase()}">${Math.abs(remainingCalories)} Calorie ${surplusOrDeficit}</span>
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<hr>
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<p>${budgetCalories} Calories Budgeted</p>
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<p>${consumedCalories} Calories Consumed</p>
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<p>${exerciseCalories} Calories Burned</p>
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`;
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output.classList.remove("hide");3
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}
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function getCaloriesFromInputs(list) {
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let calories = 0;
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for (const item of list) {
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const currVal = cleanInputString(item.value);
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const invalidInputMatch = isInvalidInput(currVal);
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if (invalidInputMatch) {
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alert(`Invalid Input: ${invalidInputMatch[0]}`);
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isError = true;
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return null;
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}
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calories += Number(currVal);
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}
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return calories;
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}
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function clearForm() {};
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addEntryButton.addEventListener("click", addEntry);
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calorieCounter.addEventListener("submit", calculateCalories);
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‎steps/__90__step__/styles.css‎

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:root {
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--light-grey: #f5f6f7;
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--dark-blue: #0a0a23;
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--fcc-blue: #1b1b32;
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--light-yellow: #fecc4c;
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--dark-yellow: #feac32;
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--light-pink: #ffadad;
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--dark-red: #850000;
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--light-green: #acd157;
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}
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body {
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font-family: "Lato", Helvetica, Arial, sans-serif;
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font-size: 18px;
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background-color: var(--fcc-blue);
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color: var(--light-grey);
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}
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h1 {
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text-align: center;
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}
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.container {
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width: 90%;
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max-width: 680px;
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}
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h1,
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.container,
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.output {
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margin: 20px auto;
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}
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label,
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legend {
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font-weight: bold;
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}
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.input-container {
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display: flex;
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flex-direction: column;
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}
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button {
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cursor: pointer;
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text-decoration: none;
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background-color: var(--light-yellow);
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border: 2px solid var(--dark-yellow);
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}
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button,
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input,
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select {
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min-height: 24px;
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color: var(--dark-blue);
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}
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fieldset,
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label,
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button,
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input,
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select {
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margin-bottom: 10px;
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}
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.output {
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border: 2px solid var(--light-grey);
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padding: 10px;
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text-align: center;
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}
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.hide {
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display: none;
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}
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.output span {
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font-weight: bold;
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font-size: 1.2em;
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}
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.surplus {
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color: var(--light-pink);
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}
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.deficit {
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color: var(--light-green);
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}

‎steps/__90__step__/title.txt‎

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Step 90
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Your final feature to add
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is the ability for a user to
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clear the form. Start by declaring an
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empty function called clearForm – it should
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not take any arguments.
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