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使用jQuery+huandlebars循环中索引(@index)使用技巧(访问父级索引)

兼容ie8（很实用，复制过来，仅供技术参考，更详细内容请看源地址：http://www.cnblogs.com/iyangyuan/archive/2013/12/12/3471227.html）

<!DOCTYPE html>
<html>
  <head>
    <META http-equiv=Content-Type content="text/html; charset=utf-8">
    <title>Handlebars.js循环中索引(@index)使用技巧 - by 杨元</title>
  </head>
  <body>
    <h1>Handlebars.js循环中索引(@index)使用技巧</h1>
    <!--基础html框架-->
    <table>
      <thead>
        <tr>
          <th></th>
          <th>姓名</th>
          <th>性别</th>
          <th>年龄</th>
        </tr>
      </thead>
      <tbody id="tableList">
        
      </tbody>
    </table>
    
    <!--插件引用-->
    <script type="text/javascript" src="script/jquery.js"></script>
    <script type="text/javascript" src="script/handlebars-v1.3.0.js"></script>
    
    <!--Handlebars.js模版-->
    <!--Handlebars.js模版放在script标签中，保留了html原有层次结构,模版中要写一些操作语句-->
    <!--id可以用来唯一确定一个模版,type是模版固定的写法-->
    <script id="table-template" type="text/x-handlebars-template">
      {{#each this}}
        <tr>
          <td>{{addOne @index}}</td>
          <td>{{name}}</td>
          <td>{{sex}}</td>
          <td>{{age}}</td>
        </tr>
        {{#each family}}
          <tr>
            <td>{{../_index}}.{{@index}}</td>
            <td>{{name}}</td>
            <td>{{sex}}</td>
            <td>{{age}}</td>
          </tr>
        {{/each}}
      {{/each}}
    </script>
    
    <!--进行数据处理、html构造-->
    <script type="text/javascript">
      var data = [{
        name: "张三",
        sex: "男",
        age: 35,
        family: [{
          name: "张三儿子",
          sex: "男",
          age: 10,
        },{
          name: "张三妻子",
          sex: "女",
          age: 33,
        }]
      },{
        name: "李四",
        sex: "男",
        age: 23,
        family: [{
          name: "李四妻子",
          sex: "女",
          age: 23,
        }]
      },{
        name: "甜妞",
        sex: "女",
        age: 18,
        family: [{
          name: "甜妞妈妈",
          sex: "女",
          age: 40,
        },{
          name: "甜妞爸爸",
          sex: "男",
          age: 43,
        },{
          name: "甜妞姥爷",
          sex: "男",
          age: 73,
        }]
      }];
      
      //注册索引+1的helper
      var handleHelper = Handlebars.registerHelper("addOne",function(index){
        //利用+1的时机，在父级循环对象中添加一个_index属性，用来保存父级每次循环的索引
        this._index = index+1;
        //返回+1之后的结果
        return this._index;
      });
      //解析模版
      var handle = Handlebars.compile($("#table-template").html());
      //生成html
      var html = handle(data);
      //插入到页面
      $("#tableList").append(html);
      
    </script>
  </body>
</html>

posted on 2017-08-24 16:20  lengyue0030  阅读(276)  评论(0)  编辑  收藏  举报