287 lines
7.1 KiB
Markdown
287 lines
7.1 KiB
Markdown
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---
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id: 5ddb965c65d27e1512d44dde
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title: Part 69
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challengeType: 0
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isBeta: true
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---
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## Description
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<section id='description'>
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To remove the items `foodInputs` array, we will iterate through them by using the `forEach()` function.
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Add `foodInputs.forEach()`.
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</section>
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## Instructions
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<section id='instructions'>
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</section>
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## Tests
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<section id='tests'>
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```yml
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tests:
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- text: See description above for instructions.
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testString: assert( code.replace(/\s/g, '').match(/foodInputs.forEach\(\)/) )
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```
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</section>
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## Challenge Seed
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<section id='challengeSeed'>
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<div id='html-seed'>
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```html
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<script>
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document.getElementById('calorie-form').onsubmit = calculate;
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function calculate(e) {
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e.preventDefault();
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clearOutput();
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const total = Array.from(document.getElementsByClassName('cal-control'))
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.map(meal => Number(meal.value))
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.reduce((accumulator, currentValue) => accumulator + currentValue, 0);
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const maxCalories = document.getElementById('female').checked ? 2000 : 2500;
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const difference = total - maxCalories;
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const surplusOrDeficit = difference > 0 ? 'Surplus' : 'Deficit';
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const output = document.getElementById('output');
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const result = document.createElement('h3');
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result.className = 'green-text';
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const resultText = document.createTextNode(
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`${Math.abs(difference)} Calorie ${surplusOrDeficit}`
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);
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result.appendChild(resultText);
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output.appendChild(result);
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const line = document.createElement('hr');
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output.appendChild(line);
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const recommended = document.createElement('h4');
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const recommendedText = document.createTextNode(
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`${maxCalories} Recommended Calories`
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);
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recommended.appendChild(recommendedText);
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output.appendChild(recommended);
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const consumed = document.createElement('h4');
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consumed.innerHTML = `${total} Consumed Calories`;
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output.appendChild(consumed);
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output.setAttribute('class', 'bordered-class');
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output.style.backgroundColor = '#FFF9C4';
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}
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document.getElementById('add').onclick = function() {
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const foodInput = document.createElement('input');
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foodInput.placeholder = 'food name';
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foodInput.classList.add('food-control');
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document.getElementById('entries').appendChild(foodInput);
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const calorieInput = document.createElement('input');
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calorieInput.setAttribute('type', 'number');
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calorieInput.setAttribute('min', '0');
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calorieInput.classList.add('cal-control');
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calorieInput.classList.add('extra-cal-control');
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document.getElementById('entries').appendChild(calorieInput);
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};
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document.getElementById('clear').onclick = function() {
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clearOutput();
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clearForm();
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};
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const clearOutput = () => {
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document.getElementById('output').innerHTML = '';
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document.getElementById('output').classList.remove('bordered-class');
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};
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const clearForm = () => {
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const foodInputs = Array.from(
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document.getElementsByClassName('food-control')
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);
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};
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</script>
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```
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</div>
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### Before Test
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<div id='html-setup'>
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```html
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<!DOCTYPE html>
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<html>
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<head>
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<meta charset="utf-8" />
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<title></title>
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<meta name="description" content="" />
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<meta name="viewport" content="width=device-width, initial-scale=1" />
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<link rel="stylesheet" href="styles.css" />
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</head>
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<body>
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<div class="container">
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<form id="calorie-form">
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<h2 class="center">Calorie Counter</h2>
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<div class="grid">
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<legend>Sex</legend>
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<div>
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<input type="radio" name="sex" id="female" value="F" checked />
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<label for="female">
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Female (2,000 calories)
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</label>
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<div>
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<input type="radio" name="sex" id="male" value="M" />
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<label for="male">
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Male (2,500 calories)
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</label>
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</div>
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</div>
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</div>
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<div class="grid" id="entries">
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Breakfast
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<input
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type="number"
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min="0"
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class="cal-control"
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id="breakfast"
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/><br />
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Lunch
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<input type="number" min="0" class="cal-control" id="lunch" /><br />
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Dinner <input type="number" min="0" class="cal-control" id="dinner" />
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</div>
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<button type="button" class="btn-add" id="add">
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Add Entry
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</button>
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<button type="submit" class="btn-solid" id="calculate">
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Calculate
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</button>
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<button type="button" class="btn-outline" id="clear">
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Clear
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</button>
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</form>
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<div id="output"></div>
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</div>
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</body>
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</html>
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```
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</div>
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### After Test
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<div id='html-teardown'>
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```html
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</body>
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</html>
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```
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</div>
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</section>
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## Solution
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<section id='solution'>
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```html
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<script>
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document.getElementById('calorie-form').onsubmit = calculate;
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function calculate(e) {
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e.preventDefault();
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clearOutput();
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const total = Array.from(document.getElementsByClassName('cal-control'))
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.map(meal => Number(meal.value))
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.reduce((accumulator, currentValue) => accumulator + currentValue, 0);
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const maxCalories = document.getElementById('female').checked ? 2000 : 2500;
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const difference = total - maxCalories;
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const surplusOrDeficit = difference > 0 ? 'Surplus' : 'Deficit';
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const output = document.getElementById('output');
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const result = document.createElement('h3');
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result.className = 'green-text';
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const resultText = document.createTextNode(
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`${Math.abs(difference)} Calorie ${surplusOrDeficit}`
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);
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result.appendChild(resultText);
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output.appendChild(result);
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const line = document.createElement('hr');
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output.appendChild(line);
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const recommended = document.createElement('h4');
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const recommendedText = document.createTextNode(
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`${maxCalories} Recommended Calories`
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);
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recommended.appendChild(recommendedText);
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output.appendChild(recommended);
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const consumed = document.createElement('h4');
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consumed.innerHTML = `${total} Consumed Calories`;
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output.appendChild(consumed);
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output.setAttribute('class', 'bordered-class');
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output.style.backgroundColor = '#FFF9C4';
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}
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document.getElementById('add').onclick = function() {
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const foodInput = document.createElement('input');
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foodInput.placeholder = 'food name';
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foodInput.classList.add('food-control');
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document.getElementById('entries').appendChild(foodInput);
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const calorieInput = document.createElement('input');
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calorieInput.setAttribute('type', 'number');
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calorieInput.setAttribute('min', '0');
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calorieInput.classList.add('cal-control');
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calorieInput.classList.add('extra-cal-control');
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document.getElementById('entries').appendChild(calorieInput);
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};
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document.getElementById('clear').onclick = function() {
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clearOutput();
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clearForm();
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};
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const clearOutput = () => {
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document.getElementById('output').innerHTML = '';
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document.getElementById('output').classList.remove('bordered-class');
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};
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const clearForm = () => {
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const foodInputs = Array.from(
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document.getElementsByClassName('food-control')
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);
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foodInputs.forEach();
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};
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</script>
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```
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</section>
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