1.8 KiB
1.8 KiB
id | title | challengeType | videoUrl | localeTitle |
---|---|---|---|---|
bad87fee1348bd9aedc08830 | Use HTML5 to Require a Field | 0 | 使用HTML5需要字段 |
Description
input
元素中添加required
的属性,如下所示: <input type="text" required>
Instructions
required
使您的input
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。 Tests
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.");'
Challenge Seed
<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>
Solution
// solution required