freeCodeCamp/curriculum/challenges/english/03-front-end-libraries/jquery/remove-classes-from-an-element-with-jquery.english.md

id, title, required, challengeType

id	title	required	challengeType
bad87fee1348bd9aed918626	Remove Classes from an Element with jQuery	link https://cdnjs.cloudflare.com/ajax/libs/animate.css/3.2.0/animate.css	6

Description

In the same way you can add classes to an element with jQuery's addClass() function, you can remove them with jQuery's removeClass() function. Here's how you would do this for a specific button: $("#target2").removeClass("btn-default"); Let's remove the btn-default class from all of our button elements.

Instructions

Tests

tests:
  - text: Remove the <code>btn-default</code> class from all of your <code>button</code> elements.
    testString: assert($(".btn-default").length === 0, 'Remove the <code>btn-default</code> class from all of your <code>button</code> elements.');
  - text: Only use jQuery to remove this class from the element.
    testString: assert(code.match(/btn btn-default/g), 'Only use jQuery to remove this class from the element.');
  - text: Only remove the <code>btn-default</code> class.
    testString: assert(code.match(/\.[\v\s]*removeClass[\s\v]*\([\s\v]*('|")\s*btn-default\s*('|")[\s\v]*\)/gm), 'Only remove the <code>btn-default</code> class.');

Challenge Seed

<script>
  $(document).ready(function() {
    $("button").addClass("animated bounce");
    $(".well").addClass("animated shake");
    $("#target3").addClass("animated fadeOut");

  });
</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

// solution required