freeCodeCamp/curriculum/challenges/english/03-front-end-libraries/jquery/target-the-same-element-with-multiple-jquery-selectors.md

id	title	required	challengeType	forumTopicId
bad87fee1348bd9aed908626	Target the Same Element with Multiple jQuery Selectors	link https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.2.0/animate.css	6	18322

Description

Now you know three ways of targeting elements: by type: $("button"), by class: $(".btn"), and by id $("#target1"). Although it is possible to add multiple classes in a single .addClass() call, let's add them to the same element in three separate ways. Using .addClass(), add only one class at a time to the same element, three different ways: Add the animated class to all elements with type button. Add the shake class to all the buttons with class .btn. Add the btn-primary class to the button with id #target1. Note
You should only be targeting one element and adding only one class at a time. Altogether, your three individual selectors will end up adding the three classes shake, animated, and btn-primary to #target1.

Instructions

Tests

tests:
  - text: Your code should use the <code>$&#40"button"&#41</code> selector.
    testString: assert(code.match(/\$\s*?\(\s*?(?:'|")\s*?button\s*?(?:'|")/gi));
  - text: Your code should use the <code>$&#40".btn"&#41</code> selector.
    testString: assert(code.match(/\$\s*?\(\s*?(?:'|")\s*?\.btn\s*?(?:'|")/gi));
  - text: Your code should use the <code>$&#40"#target1"&#41</code> selector.
    testString: assert(code.match(/\$\s*?\(\s*?(?:'|")\s*?#target1\s*?(?:'|")/gi));
  - text: You should only add one class with each of your three selectors.
    testString: assert(code.match(/addClass/g) && code.match(/addClass\s*?\(\s*?('|")\s*?[\w-]+\s*?\1\s*?\)/g).length > 2);
  - text: Your <code>#target1</code> element should have the classes <code>animated</code>&#130; <code>shake</code> and <code>btn-primary</code>.
    testString: assert($('#target1').hasClass('animated') && $('#target1').hasClass('shake') && $('#target1').hasClass('btn-primary'));
  - text: You should only use jQuery to add these classes to the element.
    testString: assert(!code.match(/class.*animated/g));

Challenge Seed

<script>
  $(document).ready(function() {

  });
</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");
    $(".btn").addClass("shake");
    $("#target1").addClass("btn-primary");
  });
</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>