点击materializecss卡显示按钮通过js

Question

<div class="card">
    <div class="card-image waves-effect waves-block waves-light">
      <img class="activator" src="images/office.jpg">
    </div>
    <div class="card-content">
      <span class="card-title activator grey-text text-darken-4">Card Title<i class="material-icons right">more_vert</i></span>
      <p><a href="#">This is a link</a></p>
    </div>
    <div class="card-reveal">
      <span class="card-title grey-text text-darken-4">Card Title<i class="material-icons right">close</i></span>
      <p></p>
    </div>
  </div>

这是materializecss卡的代码。卡片显示将在点击<span class="card-title grey-text text-darken-4">Card Title<i class="material-icons right">close</i></span>时关闭我想通过JS自动点击此内容。我试过.click（）和.trigger（'click'）;我无法实现它。