為什么JavaScript焦點無法使用？

Question

我的要求是當我單擊＃land1 ID時，焦點將轉到＃div1 id。但是我的代碼沒有顯示任何內容。 我不明白這個問題。 我的代碼如下：

 <script type="text/javascript">
    $(document).ready(function () {
        $('#land1').click(function() {
            $("#div1").focus()
        });

    });

  </script>

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<div class="chart" id="#div1">
<p class="charthead">Matric Pass / Fail Counts &nbsp;
    <i class="fa fa-share" aria-hidden="true"></i> 
      <span><i class="fa fa-clone" aria-hidden="true"></i></span></p>
        <div class="chartimg">
            <img src="images/1chart.png">
        </div>
    </div>

Answer 1

我嘗試了您的示例，並且效果很好。 你錯了

<div class="chart" id="#div1"> 

而是： <div class="chart" id="div1">

工作小提琴

Answer 2

首先， id屬性應具有div1值，而不是#div1 。 另一個重要方面：div在默認情況下不是可聚焦的。 但是，可以通過向其添加tabindex屬性來指示瀏覽器您希望對其進行聚焦：

<div class="chart" id="div1" tabindex="0">
  <p class="charthead">Matric Pass / Fail Counts
    <i class="fa fa-share" aria-hidden="true"></i>
    <span>
        <i class="fa fa-clone" aria-hidden="true"></i>
      </span>
  </p>
  <div class="chartimg">
    <img src="https://cdn3.iconfinder.com/data/icons/forall/110/chart-128.png" />
  </div>
</div>

tabindex="0"表示可以通過調用它的focus方法以編程方式對這個容器進行聚焦。