JQuery select()用法及代码示例

jQueryselect()method 是一种内置方法，在文本区域或文本字段中选择(或标记)某些字母或单词时使用。

用法:

$(selector).select(function);

参数：该方法接受单个参数函数这是可选的。函数参数将在 select 方法调用后运行。

下面的示例说明了 jQuery 中的 select() 方法：

示例 1：在此示例中，当我们在框中选择某些内容时，将会出现pop-op。

HTML


<!DOCTYPE html>
<html>
<head>
    <title>Select Method</title>
    <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
    </script>
    <!-- JQuery code to show the working of this method -->
    <script>
        $(document).ready(function () {
            $("input").select(function () {
                alert("Something was selected");
            });
        });
    </script>
    <style>
        div {
            width: 250px;
            height: 40px;
            padding: 20px;
            border: 2px solid green;
        }
    </style>
</head>
<body>
    <div>
        <!-- select any thing from inside this field -->
        <input type="text" value="GeeksforGeeks!">
    </div>
</body>
</html>

输出：

示例 2：在此示例中，当我们在框中选择某些内容时，背景颜色将会改变。

HTML


<!DOCTYPE html>
<html>
<head>
    <title>Select Method</title>
    <script src=
"https://ajax.googleapis.com/ajax/libs/jquery/3.3.1/jquery.min.js">
    </script>
    <!-- JQuery code to show the working of this method -->
    <script>
        $(document).ready(function () {
            $("div").select(function () {
                $("textarea").css(
                    "background-color", "green");
            });
        });
    </script>
    <style>
        div {
            width: 500px;
            height: 100px;
            padding: 20px;
            border: 2px solid green;
        }
    </style>
</head>
<body>
    <div>
        <!-- select any thing from inside the box -->
        <textarea>
            A Computer Science portal for geeks. It 
            contains well written, well thought 
            and well explained computer science and 
            programming articles, quizzes and 
            practice/competitive programming/company 
            interview Questions.
        </textarea>
    </div>
</body>
</html>

输出：

相关用法

注：本文由纯净天空筛选整理自kundankumarjha大神的英文原创作品 jQuery select() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。