怎么在jQuery中使用map方法遍历数组？相信很多没有经验的人对此束手无策，为此本文总结了问题出现的原因和解决方法，通过这篇文章希望你能解决这个问题。

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jquery是什么

jquery是一个简洁而快速的JavaScript库，它具有独特的链式语法和短小清晰的多功能接口、高效灵活的css选择器，并且可对CSS选择器进行扩展、拥有便捷的插件扩展机制和丰富的插件，是继Prototype之后又一个优秀的JavaScript代码库，能够用于简化事件处理、HTML文档遍历、Ajax交互和动画，以便快速开发网站。

1、map方法

可以在回调函数中通过return对遍历的数组进行处理然后生成一个新的数组返回。

2、使用语法

$.map(arr,function(i,item){}),

3、使用参数

function()：表示回调函数

i：遍历到的元素

item：遍历到的索引

4、返回值

一个空数组

5、使用实例

   





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/home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/ThinkPHP.php ( 4.61 KB )
/home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Think.class.php ( 12.26 KB )
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/home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Behavior/BuildLiteBehavior.class.php ( 3.68 KB )
/home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Behavior/ParseTemplateBehavior.class.php ( 3.88 KB )
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/home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Behavior/WriteHtmlCacheBehavior.class.php ( 0.97 KB )
/home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Behavior/ShowPageTraceBehavior.class.php ( 5.24 KB )
    
    
        

    

	
[ app_init ] --START--
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[ view_parse ] --START--
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Run Behavior\ParseTemplateBehavior [ RunTime:0.007421s ]
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[ view_filter ] --START--
Run Behavior\WriteHtmlCacheBehavior [ RunTime:0.000116s ]
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[ app_end ] --START--
    
    
        

    

	
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 [ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( id= ) LIMIT 1  
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 [ SQL语句 ] : SELECT `id`,`navname` FROM `cx_nav` WHERE ( pid= ) 
[8] Undefined index: pid /home/wwwroot/bluegullmedia/wwwroot/App/Home/Controller/ArticleController.class.php 第 47 行.
[2] mkdir(): Permission denied /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Cache/Driver/File.class.php 第 59 行.
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[8] Undefined index: db_host /home/wwwroot/bluegullmedia/wwwroot/ThinkPHP/Library/Think/Db.class.php 第 120 行.
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