72 lines
1.8 KiB
Markdown
72 lines
1.8 KiB
Markdown
---
|
||
id: bad87fee1348bd9aedc08830
|
||
title: Use HTML5 to Require a Field
|
||
challengeType: 0
|
||
videoUrl: ''
|
||
localeTitle: 使用HTML5需要字段
|
||
---
|
||
|
||
## Description
|
||
<section id="description">您可以订定必填项，限制您的用户在完成必填项之前无法提交表单。如果您要订定必填项段，只需在<code>input</code>元素中添加<code>required</code>的属性，如下所示： <code><input type="text" required></code> </section>
|
||
|
||
## Instructions
|
||
<section id="instructions">利用<code>required</code> 使您的<code>input</code>成为必填项 ，限制您的用户在沒填写必填项的情况下无法提交表单。请尝试在沒有在完成必填项前提交表单，看看HTML5如何通知您少填了必填项。 </section>
|
||
|
||
## Tests
|
||
<section id='tests'>
|
||
|
||
```yml
|
||
tests:
|
||
- text: 您的<code>input</code>元素应具有<code>required</code>属性。
|
||
testString: 'assert($("input").prop("required"), "Your text <code>input</code> element should have the <code>required</code> attribute.");'
|
||
|
||
```
|
||
|
||
</section>
|
||
|
||
## Challenge Seed
|
||
<section id='challengeSeed'>
|
||
|
||
<div id='html-seed'>
|
||
|
||
```html
|
||
<h2>CatPhotoApp</h2>
|
||
<main>
|
||
<p>Click here to view more <a href="#">cat photos</a>.</p>
|
||
|
||
<a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
|
||
|
||
<p>Things cats love:</p>
|
||
<ul>
|
||
<li>cat nip</li>
|
||
<li>laser pointers</li>
|
||
<li>lasagna</li>
|
||
</ul>
|
||
<p>Top 3 things cats hate:</p>
|
||
<ol>
|
||
<li>flea treatment</li>
|
||
<li>thunder</li>
|
||
<li>other cats</li>
|
||
</ol>
|
||
<form action="/submit-cat-photo">
|
||
<input type="text" placeholder="cat photo URL">
|
||
<button type="submit">Submit</button>
|
||
</form>
|
||
</main>
|
||
|
||
```
|
||
|
||
</div>
|
||
|
||
|
||
|
||
</section>
|
||
|
||
## Solution
|
||
<section id='solution'>
|
||
|
||
```js
|
||
// solution required
|
||
```
|
||
</section>
|