159 lines
3.6 KiB
Markdown
159 lines
3.6 KiB
Markdown
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---
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id: 5ddb965c65d27e1512d44dae
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title: Part 23
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challengeType: 0
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---
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## Description
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<section id='description'>
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Now that we have the `total` number of calories that the user entered, we need to determine the maximum calories they should consume.
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Look at the form and notice that there are radio buttons for Female and Male. If Female is selected, the maximum calories consumed should be 2000, and if Male is selected, the maximum should be 2500.
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If you inspect the Female radio button you will notice its id: `<input type="radio" name="sex" id="female" value="F" checked="">`
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Create a variable named `maxCalories` and set it equal to the document element with the id of `female`.
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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.match());
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testString: assert(/const\s*maxCalories\s*=\s*document\.getElementById\([\'\"\`]female[\'\"\`]\)/.test(code));
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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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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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}
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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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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');
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}
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</script>
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```
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</section>
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