HTML DOM Input Email autofocus 属性

htmlweb developmentfront end technology更新于 2025/6/25 22:04:17

HTML DOM Input Email autofocus 属性设置/返回输入电子邮件在初始页面加载时是否获得焦点。

语法

以下是语法 −

返回布尔值 - true/false

inputEmailObject.autofocus

将 autofocus 设置为 booleanValue

inputEmailObject.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 Email autofocus 属性的示例 −

<!DOCTYPE html>
<html>
<head>
<title>Input Email 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>Email-autofocus</legend>
<label for="EmailSelect">User Email :
<input type="email" id="EmailSelect" placeholder="eg: xyz@abc.com" autofocus>
</label>
<input type="button" onclick="removeAutofocus()" value="Remove Autofocus">
<div id="divDisplay"></div>
</fieldset>
</form>
<script>
   var divDisplay = document.getElementById("divDisplay");
   var inputEmail = document.getElementById("EmailSelect");
   divDisplay.textContent = 'Autofocus: '+inputEmail.autofocus;
   function removeAutofocus() {
      inputEmail.autofocus = false;
      divDisplay.textContent = 'Autofocus: '+inputEmail.autofocus;
   }
</script>
</body>
</html>