freeCodeCamp/target-elements-by-class-using-jquery.english.md at c2bbde95a314df738be94e462e3b21930d2c84e4

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Randell Dawson 3ec1fe8ea7 feat: add forumTopicId to challenge frontmatter [pre-existing]

This commit adds the pre-existing challenge guide topics in the
forum to the forntmatter of their challenge markdown files.

2019-08-05 22:14:37 +05:30

3.7 KiB

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id, title, required, challengeType, forumTopicId

title

required

challengeType

forumTopicId

bad87fee1348bd9aedc08826

Target Elements by Class Using jQuery

link
https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.2.0/animate.css

18316

Description

You see how we made all of your button elements bounce? We selected them with $("button"), then we added some CSS classes to them with .addClass("animated bounce");. You just used jQuery's .addClass() function, which allows you to add classes to elements. First, let's target your div elements with the class well by using the $(".well") selector. Note that, just like with CSS declarations, you type a . before the class's name. Then use jQuery's .addClass() function to add the classes animated and shake. For example, you could make all the elements with the class text-primary shake by adding the following to your document ready function: $(".text-primary").addClass("animated shake");

Instructions

Tests

tests:
  - text: Use the jQuery <code>addClass&#40&#41</code> function to give the classes <code>animated</code> and <code>shake</code> to all your elements with the class <code>well</code>.
    testString: assert($(".well").hasClass("animated") && $(".well").hasClass("shake"));
  - text: Only use jQuery to add these classes to the element.
    testString: assert(!code.match(/class\.\*animated/g));

Challenge Seed

<script>
  $(document).ready(function() {
    $("button").addClass("animated bounce");
  });
</script>

<!-- Only change code above this line. -->

<div class="container-fluid">
  <h3 class="text-primary text-center">jQuery Playground</h3>
  <div class="row">
    <div class="col-xs-6">
      <h4>#left-well</h4>
      <div class="well" id="left-well">
        <button class="btn btn-default target" id="target1">#target1</button>
        <button class="btn btn-default target" id="target2">#target2</button>
        <button class="btn btn-default target" id="target3">#target3</button>
      </div>
    </div>
    <div class="col-xs-6">
      <h4>#right-well</h4>
      <div class="well" id="right-well">
        <button class="btn btn-default target" id="target4">#target4</button>
        <button class="btn btn-default target" id="target5">#target5</button>
        <button class="btn btn-default target" id="target6">#target6</button>
      </div>
    </div>
  </div>
</div>

Solution

<script>
  $(document).ready(function() {
    $("button").addClass("animated bounce");
    $(".well").addClass("animated shake");
  });
</script>

<!-- Only change code above this line. -->

<div class="container-fluid">
  <h3 class="text-primary text-center">jQuery Playground</h3>
  <div class="row">
    <div class="col-xs-6">
      <h4>#left-well</h4>
      <div class="well" id="left-well">
        <button class="btn btn-default target" id="target1">#target1</button>
        <button class="btn btn-default target" id="target2">#target2</button>
        <button class="btn btn-default target" id="target3">#target3</button>
      </div>
    </div>
    <div class="col-xs-6">
      <h4>#right-well</h4>
      <div class="well" id="right-well">
        <button class="btn btn-default target" id="target4">#target4</button>
        <button class="btn btn-default target" id="target5">#target5</button>
        <button class="btn btn-default target" id="target6">#target6</button>
      </div>
    </div>
  </div>
</div>

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