极客教程jQuery :enabled 选择器
jQuery :enabled选择器是用来选择所有启用的表单元素。
语法 :
$(":enabled")
参数:
- :enabled。它用于选择支持disabled属性的HTML元素，即按钮标签、输入标签、optgroup标签、选项标签、选择标签和textarea标签。
示例 1:
<!DOCTYPE html>
<html>
<head>
<title>:enabled Selector</title>
<script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
</script>
<script>
(document).ready(function () {
(":enabled").css("background-color",
"green");
});
</script>
</head>
<body>
<center>
<form action="#">
<h1>Welcome to GeeksforGeeks!.</h1>
<div>
Text :
<input type="text" name="text" value="GeeksforGeeks">
<br/>
<input type="submit" name="submit" value="submit">
</div>
</form>
</center>
</body>
</html>
输出:
示例 2:
<!DOCTYPE html>
<html>
<head>
<title>:enabled Selector</title>
<script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
</script>
<script>
(document).ready(function () {
(":enabled").css("background-color",
"green");
});
</script>
</head>
<body>
<center>
<form action="#">
<h1>Welcome to GeeksforGeeks!.</h1>
<div>
Select :
<select>
<option>1</option>
<option>2</option>
<option>3</option>
<option>4</option>
</select>
</div>
</form>
</center>
</body>
</html>
输出:
