92 lines
2.6 KiB
Markdown
92 lines
2.6 KiB
Markdown
---
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id: 5ef9b03c81a63668521804db
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title: Part 40
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challengeType: 0
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dashedName: part-40
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---
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# --description--
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To prevent a user from submitting your form when required information is missing, you need to add the `required` attribute to an `input` element. There's no need to set a value to the `required` attribute. Instead, just add the word `required` to the `input` element, making sure there is space between it and other attributes.
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# --hints--
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You have either deleted your `input` element or it has invalid syntax. All attributes' values should be surrounded by quotation marks.
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```js
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assert($('input').length);
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```
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Your `form` should only contain the `input` element. Remove any HTML additional elements or text within the `form` element.
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```js
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assert(
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$('form')[0].children.length === 1 &&
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$('form')[0].innerText.trim().length === 0
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);
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```
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Your `input` element should have a `required` attribute. Remember, you just add the word `required` inside the `input` element's tag.
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```js
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assert($('input')[0].hasAttribute('required'));
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```
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A value should not be given to the `required` attribute.
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```js
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assert($('input')[0].getAttribute('required') === '');
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```
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# --seed--
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## --seed-contents--
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```html
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<html>
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<body>
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<h1>CatPhotoApp</h1>
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<main>
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<section>
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<h2>Cat Photos</h2>
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<!-- TODO: Add link to cat photos -->
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<p>Click here to view more <a target="_blank" href="https://freecatphotoapp.com">cat photos</a>.</p>
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<a href="https://freecatphotoapp.com"><img src="https://bit.ly/fcc-relaxing-cat" alt="A cute orange cat lying on its back."></a>
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</section>
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<section>
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<h2>Cat Lists</h2>
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<h3>Things cats love:</h3>
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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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<figure>
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<img src="https://bit.ly/fcc-lasagna" alt="A slice of lasagna on a plate.">
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<figcaption>Cats <em>love</em> lasagna.</figcaption>
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</figure>
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<h3>Top 3 things cats hate:</h3>
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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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<figure>
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<img src="https://bit.ly/fcc-cats" alt="Five cats looking around a field.">
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<figcaption>Cats <strong>hate</strong> other cats.</figcaption>
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</figure>
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</section>
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<section>
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<h2>Cat Form</h2>
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<form action="https://freecatphotoapp.com/submit-cat-photo">
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--fcc-editable-region--
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<input type="text" name="catphotourl" placeholder="cat photo URL">
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--fcc-editable-region--
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</form>
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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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