HTML DOM Input Week autofocus 属性

htmlweb developmentfront end technology更新于 2025/9/4 6:04:17

Input Week autofocus 属性设置/返回 Input Week 在页面初始加载时是否获得焦点。

语法

以下是语法 −

返回布尔值 - true/false

inputWeekObject.autofocus

将自动对焦设置为布尔值

inputWeekObject.autofocus = booleanValue

布尔值

此处，“booleanValue” 可以是以下 −

booleanValue	详情
True	定义输入框在页面加载时自动对焦。
False	这是默认值，输入框不会自动对焦。

示例

让我们看一个 Input Week autofocus 属性的示例 −

<!DOCTYPE html>
<html>
<head>
<title>Input Week autofocus</title>
<style>
   form {
      width:70%;
      margin: 0 auto;
      text-align: center;
   }
   * {
      padding: 2px;
      margin:5px;
   }
   input[type="button"] {
      border-radius: 10px;
   }
</style>
</head>
<body>
<form>
<fieldset>
<legend>Week-autofocus</legend>
<label for="WeekSelect">Target Week :
<input type="week" id="WeekSelect" value="2019-W24" autofocus>
</label>
<input type="button" onclick="removeAutofocus()" value="Remove Autofocus">
<div id="divDisplay"></div>
</fieldset>
</form>
<script>
   var divDisplay = document.getElementById("divDisplay");
   var inputWeek = document.getElementById("WeekSelect");
   divDisplay.textContent = 'Autofocus: '+inputWeek.autofocus;
   function removeAutofocus() {
      inputWeek.autofocus = false;
      divDisplay.textContent = 'Autofocus: '+inputWeek.autofocus;
   }
</script>
</body>
</html>