tryjsref_email_placeholder2 在线代码实例

实例代码( Tip: 登录后体验更佳 )
运行代码

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<!DOCTYPE html>
<html>
<body>
登录: <input type="email" id="myEmail" placeholder="Email">
<p>点击按钮显示 email 字段的预期文本值。</p>
<button onclick="myFunction()">点我</button>
<p><strong>注意:</strong> IE 9 (及更早IE版本 earlier)， Safari不支持input  type="email" 元素。</p>
<p id="demo"></p>
<script>
function myFunction() {
    var x = document.getElementById("myEmail").placeholder;
    document.getElementById("demo").innerHTML = x;
}
</script>
</body>
</html>
 
 
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运行结果
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