JQuery focusout()用法及代码示例

jQuery focusout()是一种内置方法，用于从所选元素中删除焦点。

用法:

$(selector).focusout(function);

参数：它接受一个参数“function”，该参数将在执行淡出方法后执行。

示例 1：jQuery 代码显示 focusout() 方法的用法原理。

HTML


<!DOCTYPE html>
<html>
<head>
    <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").focusin(function () {
                $(this).css("background-color", "green");
            });
            $("div").focusout(function () {
                $(this).css("background-color", "#FFFFFF");
            });
        });
    </script>
    <style>
        div {
            border: 2px solid black;
            width: 50%;
            padding: 20px;
        }
        input {
            padding: 5px;
            margin: 10px;
        }
    </style>
</head>
<body>
    <!-- click inside the field focusin will 
        take place and when click outside 
        focusout will take place -->
    <div>
        Enter name:
        <input type="text">
        <br>
    </div>
</body>
</html>

输出：

示例 2：在此示例中，我们将使用focusin()和focusout()为输入框设置动画。

HTML


<!DOCTYPE html>
<html>
<head>
    <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").focusin(function () {
                $("input").animate({ fontSize: "+=14px" });
            });
            $("div").focusout(function () {
                $("input").animate({ fontSize: "-=14px" });
            });
        });
    </script>
    <style>
        div {
            border: 2px solid green;
            width: 50%;
            padding: 20px;
        }
        input {
            padding: 5px;
            margin: 10px;
        }
    </style>
</head>
<body>
    <!-- click inside the field focusin will
         take place and when click outside 
         focusout will take place -->
    <div>
        Enter name:
        <input type="text">
        <br>
    </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 focusout() 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。