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Bootstrap4で表示・非表示(collapse)

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概要

フロントフレームワークを使ってみたのでメモする。

サンプル

<!DOCTYPE html>
<html lang="ja">
<head>
  <!-- Required meta tags -->
  <meta charset="utf-8">
  <meta name="viewport" content="width=device-width, initial-scale=1, shrink-to-fit=no">
  <title>BootStrap Sample</title>

  <!-- Bootstrap CSS -->
  <link rel="stylesheet" href="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/css/bootstrap.min.css" integrity="sha384-Gn5384xqQ1aoWXA+058RXPxPg6fy4IWvTNh0E263XmFcJlSAwiGgFAW/dAiS6JXm" crossorigin="anonymous">
</head>
<body>
  <div class="container">
    <div class="row">

      <div class="col-12 mb-5">
        <h3 clsss="display">静的な設置方法</h3>
        <button type="button" class="btn btn-primary" data-toggle="collapse" data-target="#demo">Toogle</button>
        <div id="demo" class="collapse mt-3">
          <div class="card card-body">
            <p>this is collapse sample.</p>
          </div>
        </div>
      </div>

      <div class="col-12 mb-5">
        <h3 clsss="display">動的な設置方法</h3>
        <button type="button" class="btn btn-primary" id="btn-toggle">Toggle</button>
        <button type="button" class="btn btn-primary" id="btn-show">Show</button>
        <button type="button" class="btn btn-primary" id="btn-hide">Hide</button>
        <div id="card" class="collapse mt-3">
          <div class="card card-body">
            <p>this is collapse sample.</p>
          </div>
        </div>
      </div>

    </div>
  </div>

  <!-- Optional JavaScript -->
  <!-- jQuery first, then Popper.js, then Bootstrap JS -->
  <script src="https://code.jquery.com/jquery-3.2.1.slim.min.js" integrity="sha384-KJ3o2DKtIkvYIK3UENzmM7KCkRr/rE9/Qpg6aAZGJwFDMVNA/GpGFF93hXpG5KkN" crossorigin="anonymous"></script>
  <script src="https://cdnjs.cloudflare.com/ajax/libs/popper.js/1.12.9/umd/popper.min.js" integrity="sha384-ApNbgh9B+Y1QKtv3Rn7W3mgPxhU9K/ScQsAP7hUibX39j7fakFPskvXusvfa0b4Q" crossorigin="anonymous"></script>
  <script src="https://maxcdn.bootstrapcdn.com/bootstrap/4.0.0/js/bootstrap.min.js" integrity="sha384-JZR6Spejh4U02d8jOt6vLEHfe/JQGiRRSQQxSfFWpi1MquVdAyjUar5+76PVCmYl" crossorigin="anonymous"></script>
  <script>
    (function($){
      const card = $('#card');
      $('#btn-toggle').on('click', (e) => {
        if (card.hasClass('show')) {
          console.log('hide -> show');
        } else {
          console.log('show -> hide');
        }
        card.collapse('toggle');
      });

      $('#btn-show').on('click', () => {
        card.collapse('show');
      });

      $('#btn-hide').on('click', () => {
        card.collapse('hide');
      });
    })(jQuery);
  </script>
</body>
</html>

実行してみる。
collapse.png

コンソールを確認してみる。
console.png

以上

参考サイト

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