ee1e8abd87
* 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>
134 lines
3.7 KiB
Markdown
134 lines
3.7 KiB
Markdown
---
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id: bad87fee1348bd9aedf08835
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title: 创建一组复选框
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challengeType: 0
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videoUrl: 'https://scrimba.com/p/pVMPUv/cqrkJsp'
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forumTopicId: 16821
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dashedName: create-a-set-of-checkboxes
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---
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# --description--
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`checkboxes`（复选框）就好比多项选择题，正确答案有多个。
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复选框是 `input` 选择框的一种类型。
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每一个复选框都应该嵌套在它自己的 `label`（标签）元素中。这样，我们相当于给 `input` 元素和包裹它的 `label` 元素建立起了对应关系。
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所有关联的复选框应该拥有相同的 `name` 属性。
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使得 `input` 与 `label` 关联的最佳实践是在 `label` 元素上设置 `for` 属性，让其值与复选框的 `id` 属性值相同。
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下面是一个复选框的例子：
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`<label for="loving"><input id="loving" type="checkbox" name="personality"> Loving</label>`
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# --instructions--
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请给表单添加三个复选框，每个复选框都被嵌套进 `label` 元素中，并且它的 `name` 属性均为 `personality`。你可以随意指定每个复选框的内容文本。
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# --hints--
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表单中应存在三个复选框。
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```js
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assert($('input[type="checkbox"]').length > 2);
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```
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每个复选框都应该被嵌套进 `label` 元素中。
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```js
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assert($('label > input[type="checkbox"]:only-child').length > 2);
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```
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确保 `label` 元素有结束标签。
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```js
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assert(
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code.match(/<\/label>/g) &&
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code.match(/<label/g) &&
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code.match(/<\/label>/g).length === code.match(/<label/g).length
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);
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```
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复选框的 `name` 属性值均应为 `personality`。
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```js
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assert(
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$('label > input[type="checkbox"]').filter('[name="personality"]').length > 2
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);
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```
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每个复选框都应该在 `form` 标签内。
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```js
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assert($('label').parent().get(0).tagName.match('FORM'));
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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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<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"> 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="playful"><input id="playful" type="checkbox" name="personality">Playful</label>
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<label for="lazy"><input id="lazy" type="checkbox"
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name="personality">Lazy</label>
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<label for="evil"><input id="evil" type="checkbox"
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name="personality">Evil</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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