HTML DOM console.groupCollapsed()用法及代码示例

HTML中的console.groupCollapsed()方法用于在控制台中创建一组折叠的消息。它指示折叠的消息组的开始以及调用控制台后写入的所有消息。groupCollapsed()方法将写入消息组内部。标签作为可选参数发送到console.groupCollapsed()方法。

用法:

console.groupCollapsed( label )

参数：此方法接受可选的单个参数标签，用于为折叠组指定标签。

以下示例程序旨在说明HTML中的console.groupCollapsed()方法：

范例1：

<!DOCTYPE html> 
<html> 
    <head>  
        <title>DOM console.groupCollapsed() Method</title>  
        <style>  
            h1 {  
                color:green;  
            }  
            h2 { 
                font-family:Impact; 
            } 
            body     {  
                text-align:center;  
            }  
        </style>  
    </head> 
    <body> 
        <h1>GeeksforGeeks</h1>  
        <h2>DOM console.groupCollapsed( ) Method</h2>  
        <p> 
         To view the message in the console  
         press the F12 key on your keyboard. 
        </p> 
        <script> 
            console.log("GeeksforGeeks offers the following courses:"); 
            console.group("Courses"); 
            console.log("1. fork python"); 
            console.log("2. fork cpp"); 
            console.log("3. fork java"); 
            console.log("4. Interview preparation"); 
            console.groupCollapsed(); 
            console.log("GeeksforGeeks offers tutorials on the" + 
            "following data structures:"); 
            console.log("1. Array"); 
            console.log("2. Linked List"); 
            console.log("3. Stack"); 
            console.log("4. Queue"); 
            console.groupEnd(); 
        </script> 
    </body> 
</html>

输出：

控制台视图：

范例2：将label参数与console.groupCollapsed()方法一起使用

<!DOCTYPE html> 
<html> 
    <head>  
        <title>DOM console.groupCollapsed() Method</title>  
        <style>  
            h1 {  
                color:green;  
            }  
            h2 { 
                font-family:Impact; 
            } 
            body {  
                text-align:center;  
            }  
        </style>  
    </head> 
    <body> 
        <h1>GeeksforGeeks</h1>  
        <h2>DOM console.groupCollapsed() Method</h2>  
        <p> 
         To view the message in the console 
         press the F12 key on your keyboard. 
        </p> 
        <script> 
            console.log("GeeksforGeeks offers the following courses:"); 
            console.group("Courses"); 
            console.log("1. fork python"); 
            console.log("2. fork cpp"); 
            console.log("3. fork java"); 
            console.log("4. Interview preparation"); 
            console.groupCollapsed("Data Structures"); 
            console.log("GeeksforGeeks offers tutorials on the" + 
            "following data structures:"); 
            console.log("1. Array"); 
            console.log("2. Linked List"); 
            console.log("3. Stack"); 
            console.log("4. Queue"); 
            console.groupEnd(); 
        </script> 
    </body> 
</html>

输出：

控制台视图：

支持的浏览器：console.groupCollapsed()方法支持的浏览器如下：

谷歌浏览器6.0
Internet Explorer 11.0
Firefox 9.0
Opera
Safari 5.1

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注：本文由纯净天空筛选整理自Shubrodeep Banerjee大神的英文原创作品 HTML | DOM console.groupCollapsed() 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。