* feat(tools): add seed/solution restore script * chore(curriculum): remove empty sections' markers * chore(curriculum): add seed + solution to Chinese * chore: remove old formatter * fix: update getChallenges parse translated challenges separately, without reference to the source * chore(curriculum): add dashedName to English * chore(curriculum): add dashedName to Chinese * refactor: remove unused challenge property 'name' * fix: relax dashedName requirement * fix: stray tag Remove stray `pre` tag from challenge file. Signed-off-by: nhcarrigan <nhcarrigan@gmail.com> Co-authored-by: nhcarrigan <nhcarrigan@gmail.com>
149 lines
4.6 KiB
Markdown
149 lines
4.6 KiB
Markdown
---
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id: 5c6c06847491271903d37cfd
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title: 使用单选框和复选框的 value 属性
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challengeType: 0
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forumTopicId: 301099
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dashedName: use-the-value-attribute-with-radio-buttons-and-checkboxes
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---
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# --description--
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提交表单时,所选项的值会发送给服务端。`radio` 和 `checkbox` 的 `value` 属性值决定了发送到服务端的实际内容。
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例如:
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```html
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<label for="indoor">
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<input id="indoor" value="indoor" type="radio" name="indoor-outdoor">Indoor
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</label>
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<label for="outdoor">
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<input id="outdoor" value="outdoor" type="radio" name="indoor-outdoor">Outdoor
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</label>
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```
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这里有两个 `radio` 单选框。当用户提交表单时,如果 `indoor` 选项被选中,表单数据会包含:`indoor-outdoor=indoor`。也就是所选项的 `name` 和 `value` 属性值。
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如果没有指明 `value` 属性值,则会使用默认值做为表单数据提交,也就是 `on`。在这种情况下,如果用户选中 "indoor" 选项然后提交表单,表单数据则会包含 `indoor-outdoor=on`。这样的表单数据看起来不够直观,因此最好将 `value` 属性值设置为一些有意义的内容。
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# --instructions--
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给每一个 `radio` 和 `checkbox` 输入框添加 `value` 属性,属性值为 `input` 对应 `label` 中文本的小写形式。如 Outdoor 的 `value` 应设置为 `"outdoor"`,即 `value="outdoor"`。
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# --hints--
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应有一个单选按钮的 `value` 属性值为 `indoor`。
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```js
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assert(
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$('label:contains("Indoor") > input[type="radio"]').filter("[value='indoor']")
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.length > 0
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);
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```
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应有一个单选按钮的 `value` 属性值为 `outdoor`。
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```js
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assert(
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$('label:contains("Outdoor") > input[type="radio"]').filter(
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"[value='outdoor']"
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).length > 0
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);
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```
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应有一个复选框的 `value` 属性值为 `loving`。
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```js
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assert(
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$('label:contains("Loving") > input[type="checkbox"]').filter(
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"[value='loving']"
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).length > 0
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);
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```
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应有一个复选框的 `value` 属性值为 `lazy`。
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```js
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assert(
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$('label:contains("Lazy") > input[type="checkbox"]').filter("[value='lazy']")
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.length > 0
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);
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```
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应有一个复选框的 `value` 属性值为 `energetic`。
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```js
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assert(
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$('label:contains("Energetic") > input[type="checkbox"]').filter(
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"[value='energetic']"
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).length > 0
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);
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```
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# --seed--
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## --seed-contents--
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```html
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<h2>CatPhotoApp</h2>
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<main>
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<p>Click here to view more <a href="#">cat photos</a>.</p>
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<a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
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<p>Things cats love:</p>
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<ul>
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<li>cat nip</li>
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<li>laser pointers</li>
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<li>lasagna</li>
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</ul>
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<p>Top 3 things cats hate:</p>
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<ol>
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<li>flea treatment</li>
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<li>thunder</li>
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<li>other cats</li>
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</ol>
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<form action="https://freecatphotoapp.com/submit-cat-photo">
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<label for="indoor"><input id="indoor" type="radio" name="indoor-outdoor"> Indoor</label>
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<label for="outdoor"><input id="outdoor" type="radio" name="indoor-outdoor"> Outdoor</label><br>
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<label for="loving"><input id="loving" type="checkbox" name="personality"> Loving</label>
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<label for="lazy"><input id="lazy" type="checkbox" name="personality"> Lazy</label>
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<label for="energetic"><input id="energetic" type="checkbox" name="personality"> Energetic</label><br>
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<input type="text" placeholder="cat photo URL" required>
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<button type="submit">Submit</button>
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</form>
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</main>
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```
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# --solutions--
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```html
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<h2>CatPhotoApp</h2>
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<main>
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<p>Click here to view more <a href="#">cat photos</a>.</p>
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<a href="#"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
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<p>Things cats love:</p>
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<ul>
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<li>cat nip</li>
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<li>laser pointers</li>
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<li>lasagna</li>
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</ul>
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<p>Top 3 things cats hate:</p>
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<ol>
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<li>flea treatment</li>
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<li>thunder</li>
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<li>other cats</li>
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</ol>
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<form action="https://freecatphotoapp.com/submit-cat-photo">
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<label for="indoor"><input id="indoor" type="radio" name="indoor-outdoor" value="indoor"> Indoor</label>
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<label for="outdoor"><input id="outdoor" type="radio" name="indoor-outdoor" value="outdoor"> Outdoor</label><br>
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<label for="loving"><input id="loving" type="checkbox" name="personality" value="loving"> Loving</label>
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<label for="lazy"><input id="lazy" type="checkbox" name="personality" value="lazy"> Lazy</label>
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<label for="energetic"><input id="energetic" type="checkbox" name="personality" value="energetic"> Energetic</label><br>
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<input type="text" placeholder="cat photo URL" required>
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<button type="submit">Submit</button>
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</form>
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</main>
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```
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