How to traverse json array with JQuery

JQuery method of traversing json array: 1. Use each traversal, the code is [$.each(obj, function (n, value) {alert(n '']]; 2. jquery traverses and parses json objects 1 , the code is [for(var key in].

The operating environment of this tutorial: windows7 system, jquery3.2.1 version, Dell G3 computer.

Recommendation: jquery video tutorial

JQuery method of traversing json array:

1. Use each traversal

     $(function () {
 
           var tbody = "";
           //------------遍历对象 .each的使用-------------
           //对象语法JSON数据格式(当服务器端回调回来的对象数据格式是json数据格式，必须保证JSON的格式要求，回调的对象必须使用eval函数进行转化（否则将得不到Object）。本文不作详细介绍服务器端回调的数据问题，我们将直接自定义对象)
           var obj = [{ "name": "项海军", "password": "123456"}];
           $("#result").html("------------遍历对象 .each的使用-------------");
           alert(obj); //是个object元素
           //下面使用each进行遍历
           $.each(obj, function (n, value) {
               alert(n + ' ' + value);
               var trs = "";
               trs += "<tr><td>" + value.name + "</td> <td>" + value.password + "</td></tr>";
               tbody += trs;
           });
           $("#project").append(tbody);
       });

2. jquery traversal and parsing json object 1:

 var json = [{dd:'SB',AA:'东东',re1:123},{cccc:'dd',lk:'1qw'}];
 for(var i=0,l=json.length;i<l;i++){
    for(var key in json[i]){
        alert(key+&#39;:&#39;+json[i][key]);
    }
 }

3. jquery traversal and parsing json object 2

There are the following json objects:

var obj ={”name”:”冯娟”,”password”:”123456″,”department”:”技术部”,”sex”:” 女”,”old”:30};
遍历方法：
for(var p in obj){
    str = str+obj[p]+',';
    return str;
}

Related free learning recommendations: js video tutorial

The above is the detailed content of How to traverse json array with JQuery. For more information, please follow other related articles on the PHP Chinese website!