[] {} and JSON object

The {} in JS represents an object. [] represents an array.

$.each ()

Each handles an array or JSON object.

1   var arr1 = ["AAA", "BBB", "CCC" ];       2   function (i,val) {      3      alert (i);    4       alert (val); 5   });   

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Production Menu:

1<?PHP2 /**3 * Created by Phpstorm.4 * User:administrator5 * date:14-5-276 * Time: Morning 10:197  */8Header ("Content-type:text/html;charset=utf-8");9?>Ten<script src= "Http://ajax.googleapis.com/ajax/libs/jquery/1.6.2/jquery.min.js" type= "Text/javascript" ></ Script> One<script> A     //Understanding JSON Objects -     vararr=[1,3,4,5,6,7, "7"];//equivalent to Arr=array (1,3,4,5,6,7, "7"); -document.write (arr[2]); the  -     varss={' name ': "Xiaoming", ' age ': 18}; -document.write ("My name is" +ss[' name ']+ "i" +ss.age+ "<br/>"); -  +     varmy=function(){ -         return"123456"; +     }; Adocument.write (My () + "<br/>"); at     varperson={ -Namefunction(){return"Abama"}, -Agefunction(){return"52"} -     }; -document.write (Person.name () +person.age ()); -  in     //Menus is a menu that contains multiple modules. How to read out and display it -     var_menus={' Meuns ':[ to         { +' Meunid ': 1, ' meunname ': "System Management", -' Meuns ': [{' Name ': ' Add user ', ' icon ': ', ' url ': ' http://www.baidu.com '}, the{' name ': ' Delete user ', ' icon ': ', ' url ': '}, *{' Name ': ' Modify permission ', ' icon ': ', ' url ': '}, ${' name ': ' System log ', ' icon ': ', ' url ': '}Panax Notoginseng        ]}, -         { the' Meunid ': 2, ' meunname ': "Financial Management", +' Meuns ': [{' name ': ' Financial payment ', ' icon ': ', ' url ': ' http://www.baidu.com '}, A{' name ': ' Financial Review ', ' Icon ': ', ' url ': '}, the{' name ': ' View ', ' icon ': ', ' url ': '}, +{' name ': ' No ', ' icon ': ', ' url ': '} -         ]} $     ]}; $document.write (_menus.meuns[1].menus[0].name); -  -</script> the  -<script>Wuyi     functionset_meuns () { the$ (' #meuns '). empty (); -         varList= ""; Wu$.each (_menus.meuns,function(i,k) { -list+= "<div title=" + k.meunname+ "><ul>" About$.each (K.meuns,function(i,k) { $list+= "<li><a href=" + k.url+ ">" + k.name+ "</a></li>"; -             }); -list+= "</ul></div>"; -         }); A  +  the alert (list); -$ (' #meuns '). append (list); $     } the$ (document). Ready (function(){ the set_meuns (); the     }) the</script> -  in the<body> the<div id= "Meuns" style= "border:1 solid red;width:300px;" > About Menu List Location the</div> the  the</body> +

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