HTML DOM Input Email size 属性

htmlweb developmentfront end technology更新于 2025/6/29 20:28:17

HTML DOM Input Email size 属性返回/设置输入电子邮件的 size 属性。如果未定义，此属性返回"20"。

语法

以下是语法 −

返回 size 属性

inputEmailObject.size

将 size 属性设置为 number

inputEmailObject.size = number

示例

让我们看一个 Input Email size 属性的示例 −

<!DOCTYPE html>
<html>
<head>
<title>Input Email size</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-size</legend>
<label for="EmailSelect">Email Id :
<input type="email" id="EmailSelect" size="10">
</label><br>
<input type="button" onclick="increaseVisibility()" value="Increase Visibility">
<div id="divDisplay"></div>
</fieldset>
</form>
<script>
   var divDisplay = document.getElementById("divDisplay");
   var inputEmail = document.getElementById("EmailSelect");
   function increaseVisibility() {
      inputEmail.size = 30;
      divDisplay.textContent = 'Visibility Increased to '+inputEmail.size;
   }
</script>
</body>
</html>