132 lines
3.7 KiB
Markdown
132 lines
3.7 KiB
Markdown
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---
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id: 61fd9126aa72a474301fc49f
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title: Step 20
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challengeType: 0
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dashedName: step-20
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---
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# --description--
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All'interno dell'elemento `tbody`, aggiungi quattro elementi `tr`. Dai i primi tre l'attributo`class` impostato su `data`, e al quarto l'attributo `class` impostato su `total`.
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# --hints--
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L'elemento `tbody` dovrebbe avere quattro elementi `tr`.
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```js
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const children = [...document.querySelectorAll('table')?.[1]?.querySelector('tbody')?.children];
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assert(children?.length === 4);
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children.forEach(child => assert(child?.localName === 'tr'));
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```
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I primi tre elementi `tr` dovrebbero avere l'attributo `class` con il valore `data`.
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```js
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const children = [...document.querySelectorAll('table')?.[1]?.querySelector('tbody')?.children];
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children.forEach((child, index) => {
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if (index < 3) {
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assert(child?.classList?.contains('data'));
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}
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});
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```
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Il quarto elemento `tr` dovrebbe avere l'attributo `class` con il valore `total`.
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```js
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const children = [...document.querySelectorAll('table')?.[1]?.querySelector('tbody')?.children];
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assert(children?.[3]?.classList?.contains('total'));
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```
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# --seed--
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## --seed-contents--
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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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<meta name="viewport" content="width=device-width, initial-scale=1.0">
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<title>Balance Sheet</title>
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<link rel="stylesheet" type="text/css" href="./styles.css">
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</head>
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<body>
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<main>
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<section>
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<h1>
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<span class="flex">
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<span>AcmeWidgetCorp</span>
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<span>Balance Sheet</span>
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</span>
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</h1>
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<div id="years" aria-hidden="true">
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<span class="year">2019</span>
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<span class="year">2020</span>
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<span class="year">2021</span>
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</div>
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<div class="table-wrap">
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<table>
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<caption>Assets</caption>
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<thead>
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<tr>
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<td></td>
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<th><span class="sr-only year">2019</span></th>
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<th><span class="sr-only year">2020</span></th>
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<th class="current"><span class="sr-only year">2021</span></th>
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</tr>
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</thead>
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<tbody>
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<tr class="data">
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<th>Cash <span class="description">This is the cash we currently have on hand.</span></th>
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<td>$25</td>
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<td>$30</td>
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<td class="current">$28</td>
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</tr>
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<tr class="data">
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<th>Checking <span class="description">Our primary transactional account.</span></th>
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<td>$54</td>
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<td>$56</td>
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<td class="current">$53</td>
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</tr>
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<tr class="data">
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<th>Savings <span class="description">Funds set aside for emergencies.</span></th>
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<td>$500</td>
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<td>$650</td>
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<td class="current">$728</td>
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</tr>
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<tr class="total">
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<th>Total <span class="sr-only">Assets</span></th>
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<td>$579</td>
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<td>$736</td>
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<td class="current">$809</td>
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</tr>
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</tbody>
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</table>
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--fcc-editable-region--
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<table>
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<caption>Liabilities</caption>
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<thead>
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<tr>
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<td></td>
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<th><span class="sr-only">2019</span></th>
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<th><span class="sr-only">2020</span></th>
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<th><span class="sr-only">2021</span></th>
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</tr>
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</thead>
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<tbody>
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</tbody>
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</table>
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--fcc-editable-region--
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<table>
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</table>
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</div>
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</section>
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</main>
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</body>
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</html>
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```
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```css
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```
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