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Check Radio Buttons and Checkboxes by Default

curriculum/challenges/english/blocks/basic-html-and-html5/bad87fee1348bd9aedd08835.md

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--description--

You can set a checkbox or radio button to be checked by default using the checked attribute.

To do this, just add the word checked to the inside of an input element. For example:

html
<input type="radio" name="test-name" checked>

--instructions--

Set the first of your radio buttons and the first of your checkboxes to both be checked by default.

--hints--

Your first radio button on your form should be checked by default.

js
assert.isTrue(document.querySelector('input[type="radio"]').checked);

Your first checkbox on your form should be checked by default.

js
assert.isTrue(document.querySelector('input[type="checkbox"]').checked);

You should not change the inner text of the Indoor label.

js
assert.equal(document.querySelector('label[for="indoor"]')?.innerText?.trim(), 'Indoor');

You should not change the inner text of the Loving label.

js
assert.equal(document.querySelector('label[for="loving"]')?.innerText?.trim(), 'Loving');

--seed--

--seed-contents--

html
<h2>CatPhotoApp</h2>
<main>
  <p>Click here to view more <a href="#">cat photos</a>.</p>

  <a href="#"></a>

  <p>Things cats love:</p>
  <ul>
    <li>catnip</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="https://www.freecatphotoapp.com/submit-cat-photo">
    <label for="indoor"><input id="indoor" type="radio" name="indoor-outdoor" value="indoor"> Indoor</label>
    <label for="outdoor"><input id="outdoor" type="radio" name="indoor-outdoor" value="outdoor"> Outdoor</label>

    <label for="loving"><input id="loving" type="checkbox" name="personality" value="loving"> Loving</label>
    <label for="lazy"><input id="lazy" type="checkbox" name="personality" value="lazy"> Lazy</label>
    <label for="energetic"><input id="energetic" type="checkbox" name="personality" value="energetic"> Energetic</label>

    <input type="text" placeholder="cat photo URL" required>
    <button type="submit">Submit</button>
  </form>
</main>

--solutions--

html
<h2>CatPhotoApp</h2>
<main>
  <p>Click here to view more <a href="#">cat photos</a>.</p>

  <a href="#"></a>

  <p>Things cats love:</p>
  <ul>
    <li>catnip</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="https://www.freecatphotoapp.com/submit-cat-photo">
    <label for="indoor"><input id="indoor" type="radio" name="indoor-outdoor" value="indoor" checked> Indoor</label>
    <label for="outdoor"><input id="outdoor" type="radio" name="indoor-outdoor" value="outdoor"> Outdoor</label>

    <label for="loving"><input id="loving" type="checkbox" name="personality" value="loving" checked> Loving</label>
    <label for="lazy"><input id="lazy" type="checkbox" name="personality" value="lazy"> Lazy</label>
    <label for="energetic"><input id="energetic" type="checkbox" name="personality" value="energetic"> Energetic</label>

    <input type="text" placeholder="cat photo URL" required>
    <button type="submit">Submit</button>
  </form>
</main>