Explication détaillée de la façon dont la version monopage de layuiAdmin génère dynamiquement la barre de menu de gauche en fonction des données json d'arrière-plan

<div class="layui-side layui-side-menu">
  <div class="layui-side-scroll">
    <script type="text/html" template lay-url="https://easy-mock.com/mock/5c131015dada7b27ac3a5c36/titi/treemenu"
      lay-headers="{&#39;x-auth-token&#39;: layui.data(&#39;layuiAdmin&#39;).token}"
      lay-done="layui.element.render(&#39;nav&#39;, &#39;layadmin-system-side-menu&#39;);" id="TPL_layout">
      <ul class="layui-nav layui-nav-tree" lay-shrink="all" id="LAY-system-side-menu"
        lay-filter="layadmin-system-side-menu">
        {{# 
          var path =  layui.router().path
          ,dataName = layui.setter.response.dataName;
           
          layui.each(d[dataName], function(index, item){ 
            var hasChildren = typeof item.list === &#39;object&#39; && item.list.length > 0
            ,classSelected = function(){
              if(index == 0){
                return hasChildren ? &#39;layui-nav-itemed&#39; : &#39;layui-this&#39;;
              }
              return &#39;&#39;;
            }
            ,url = typeof item.href === &#39;string&#39; ? item.href : item.name;
        }}
        <li data-name="{{ item.name || &#39;&#39; }}" data-jump="{{ item.href || &#39;&#39; }}"
          class="layui-nav-item {{ classSelected() }}">
          <a href="javascript:;" {{ hasChildren ? &#39;&#39; : &#39;lay-href="&#39;+ url +&#39;"&#39; }} lay-tips="{{ item.title }}"
            lay-direction="2">
            <i class="layui-icon {{ item.icon }}"></i>
            <cite>{{ item.title }}</cite>
          </a>
          {{# if(hasChildren){ }}
          <dl class="layui-nav-child">
            {{# layui.each(item.list, function(index2, item2){ 
              var hasChildren2 = typeof item2.list == &#39;object&#39; && item2.list.length > 0
              ,classSelected2 = function(){
                if(index==0){
                  return hasChildren2 ? &#39;layui-nav-itemed&#39; : &#39;layui-this&#39;;
                }
                return &#39;&#39;;
              }
              ,url2 = typeof item2.href === &#39;string&#39; 
                ? item2.href 
              : [item.name, item2.name, &#39;&#39;].join(&#39;/&#39;);
            }}
            <dd data-name="{{ item2.name || &#39;&#39; }}" data-jump="{{ item2.href || &#39;&#39; }}"
              {{ classSelected2() ? (&#39;class="&#39;+ classSelected2() +&#39;"&#39;) : &#39;&#39; }}>
              <a href="javascript:;" {{ hasChildren2 ? &#39;&#39; : &#39;lay-href="&#39;+ url2 +&#39;"&#39; }}>{{ item2.title }}</a>
              {{# if(hasChildren2){ }}
              <dl class="layui-nav-child">
                {{# layui.each(item2.list, function(index3, item3){ 
                      var match = path[0] == item.name && path[1] == item2.name && path[2] == item3.name
                      ,url3 = typeof item3.href === &#39;string&#39; 
                        ? item3.href 
                      : [item.name, item2.name, item3.name].join(&#39;/&#39;)
                    }}
                <dd data-name="{{ item3.name || &#39;&#39; }}" data-jump="{{ item3.href || &#39;&#39; }}"
                  {{ match ? &#39;class="layui-this"&#39; : &#39;&#39; }}>
                  <a href="javascript:;" lay-href="{{ url3 }}">{{ item3.title }}</a>
                </dd>
                {{# }); }}
              </dl>
              {{# } }}
            </dd>
            {{# }); }}
          </dl>
          {{# } }}
        </li>
        {{# }); }}
      </ul>
    </script>
  </div>
</div>

{
  "code": 0
  ,"msg": ""
  ,"data": [{
    "title": "主页"
    ,"icon": "layui-icon-home"
    ,"list": [{
      "title": "控制台"
      ,"jump": "/"
    }, {
      "name": "homepage1"
      ,"title": "主页一"
      ,"jump": "home/homepage1"
    }, {
      "name": "homepage2"
      ,"title": "主页二"
      ,"jump": "home/homepage2"
    }]
  }, {
    "name": "component"
    ,"title": "组件"
    ,"icon": "layui-icon-component"
    ,"list": [{
      "name": "grid"
      ,"title": "栅格"
      ,"list": [{
        "name": "list"
        ,"title": "等比例列表排列"
      },{
        "name": "mobile"
        ,"title": "按移动端排列"
      },{
        "name": "mobile-pc"
        ,"title": "移动桌面端组合"
      },{
        "name": "all"
        ,"title": "全端复杂组合"
      },{
        "name": "stack"
        ,"title": "低于桌面堆叠排列"
      },{
        "name": "speed-dial"
        ,"title": "九宫格"
      }]
    }, {
      "name": "button"
      ,"title": "按钮"
    }, {
      "name": "form"
      ,"title": "表单"
      ,"list": [{
        "name": "element"
        ,"title": "表单元素"
      },{
        "name": "group"
        ,"title": "表单组合"
      }]
    }, {
      "name": "nav"
      ,"title": "导航"
    }, {
      "name": "tabs"
      ,"title": "选项卡"
    }, {
      "name": "progress"
      ,"title": "进度条"
    }, {
      "name": "panel"
      ,"title": "面板"
    }, {
      "name": "badge"
      ,"title": "徽章"
    }, {
      "name": "timeline"
      ,"title": "时间线"
    }, {
      "name": "anim"
      ,"title": "动画"
    }, {
      "name": "auxiliar"
      ,"title": "辅助"
    }, {
      "name": "layer"
      ,"title": "通用弹层"
      ,"list": [{
        "name": "list"
        ,"title": "功能演示"
      },{
        "name": "special-demo"
        ,"title": "特殊示例"
      },{
        "name": "theme"
        ,"title": "风格定制"
      }]
    }, {
      "name": "laydate"
      ,"title": "日期时间"
      ,"list": [{
        "name": "demo1"
        ,"title": "功能演示一"
      },{
        "name": "demo2"
        ,"title": "功能演示二"
      },{
        "name": "theme"
        ,"title": "设定主题"
      },{
        "name": "special-demo"
        ,"title": "特殊示例"
      }]
    }, {
      "name": "table"
      ,"title": "表格"
      ,"list": [{
        "name": "simple"
        ,"title": "简单数据表格"
      },{
        "name": "auto"
        ,"title": "列宽自动分配"
      },{
        "name": "data"
        ,"title": "赋值已知数据"
      },{
        "name": "tostatic"
        ,"title": "转化静态表格"
      },{
        "name": "page"
        ,"title": "开启分页"
      },{
        "name": "resetPage"
        ,"title": "自定义分页"
      },{
        "name": "toolbar"
        ,"title": "开启头部工具栏"
      },{
        "name": "totalRow"
        ,"title": "开启合计行"
      },{
        "name": "height"
        ,"title": "高度最大适应"
      },{
        "name": "checkbox"
        ,"title": "开启复选框"
      },{
        "name": "radio"
        ,"title": "开启单选框"
      },{
        "name": "cellEdit"
        ,"title": "开启单元格编辑"
      },{
        "name": "form"
        ,"title": "加入表单元素"
      },{
        "name": "style"
        ,"title": "设置单元格样式"
      },{
        "name": "fixed"
        ,"title": "固定列"
      },{
        "name": "operate"
        ,"title": "数据操作"
      },{
        "name": "parseData"
        ,"title": "解析任意数据格式"
      },{
        "name": "onrow"
        ,"title": "监听行事件"
      },{
        "name": "reload"
        ,"title": "数据表格的重载"
      },{
        "name": "initSort"
        ,"title": "设置初始排序"
      },{
        "name": "cellEvent"
        ,"title": "监听单元格事件"
      },{
        "name": "thead"
        ,"title": "复杂表头"
      }]
    }, {
      "name": "laypage"
      ,"title": "分页"
      ,"list": [{
        "name": "demo1"
        ,"title": "功能演示一"
      },{
        "name": "demo2"
        ,"title": "功能演示二"
      }]
    }, {
      "name": "upload"
      ,"title": "上传"
      ,"list": [{
        "name": "demo1"
        ,"title": "功能演示一"
      },{
        "name": "demo2"
        ,"title": "功能演示二"
      }]
    }, {
      "name": "colorpicker"
      ,"title": "颜色选择器"
    }, {
      "name": "slider"
      ,"title": "滑块组件"
    }, {
      "name": "rate"
      ,"title": "评分"
    }, {
      "name": "carousel"
      ,"title": "轮播"
    }, {
      "name": "flow"
      ,"title": "流加载"
    }, {
      "name": "util"
      ,"title": "工具"
    }, {
      "name": "code"
      ,"title": "代码修饰"
    }, {
      "name": "layim"
      ,"title": "即时聊天"
      ,"jump": "senior/im/"
    }]
  }, {
    "name": "template"
    ,"title": "页面"
    ,"icon": "layui-icon-template"
    ,"list": [{
      "name": "personalpage"
      ,"title": "个人主页"
      ,"jump": "template/personalpage"
    },{
      "name": "addresslist"
      ,"title": "通讯录"
      ,"jump": "template/addresslist"
    },{
      "name": "caller"
      ,"title": "客户列表"
      ,"jump": "template/caller"
    },{
      "name": "goodslist"
      ,"title": "商品列表"
      ,"jump": "template/goodslist"
    },{
      "name": "msgboard"
      ,"title": "留言板"
      ,"jump": "template/msgboard"
    },{
      "name": "search"
      ,"title": "搜索结果"
      ,"jump": "template/search"
    },{
      "name": "reg"
      ,"title": "注册"
      ,"jump": "user/reg"
    },{
      "name": "login"
      ,"title": "登入"
      ,"jump": "user/login"
    },{
      "name": "forget"
      ,"title": "忘记密码"
      ,"jump": "user/forget"
    },{
      "name": "404"
      ,"title": "404"
      ,"jump": "template/tips/404"
    },{
      "name": "error"
      ,"title": "错误提示"
      ,"jump": "template/tips/error"
    }, {
      "name": ""
      ,"title": "内嵌页面"
      ,"spread": true
      ,"list": [{
        "name": ""
        ,"title": "百度一下"
        ,"jump": "/iframe/link/baidu"
      }, {
        "name": ""
        ,"title": "layui官网"
        ,"jump": "/iframe/link/layui"
      }, {
        "name": ""
        ,"title": "layuiAdmin官网"
        ,"jump": "/iframe/link/layuiAdmin"
      }]
    }]
  }, {
    "name": "app"
    ,"title": "应用"
    ,"icon": "layui-icon-app"
    ,"list": [{
      "name": "content"
      ,"title": "内容系统"
      ,"list": [{
        "name": "list"
        ,"title": "文章列表"
      },{
        "name": "tags"
        ,"title": "分类管理"
      },{
        "name": "comment"
        ,"title": "评论管理"
      }]
    },{
      "name": "forum"
      ,"title": "社区系统"
      ,"list": [{
        "name": "list"
        ,"title": "帖子列表"
      },{
        "name": "replys"
        ,"title": "回帖列表"
      }]
    },{
      "name": "message"
      ,"title": "消息中心"
    },{
      "name": "workorder"
      ,"title": "工单系统"
      ,"jump": "app/workorder/list"
    }]
  }, {
    "name": "senior"
    ,"title": "高级"
    ,"icon": "layui-icon-senior"
    ,"list": [{
      "name": "im"
      ,"title": "通讯系统"
    },{
      "name": "echarts"
      ,"title": "Echarts集成"
      ,"list": [{
        "name": "line"
        ,"title": "折线图"
      },{
        "name": "bar"
        ,"title": "柱状图"
      },{
        "name": "map"
        ,"title": "地图"
      }]
    }]
  }, {
    "name": "user"
    ,"title": "用户"
    ,"icon": "layui-icon-user"
    ,"list": [{
      "name": "user"
      ,"title": "网站用户"
      ,"jump": "user/user/list"
    }, {
      "name": "administrators-list"
      ,"title": "后台管理员"
      ,"jump": "user/administrators/list"
    }, {
      "name": "administrators-rule"
      ,"title": "角色管理"
      ,"jump": "user/administrators/role"
    }]
  }, {
    "name": "set"
    ,"title": "设置"
    ,"icon": "layui-icon-set"
    ,"list": [{
      "name": "system"
      ,"title": "系统设置"
      ,"spread": true
      ,"list": [{
        "name": "website"
        ,"title": "网站设置"
      },{
        "name": "email"
        ,"title": "邮件服务"
      }]
    },{
      "name": "user"
      ,"title": "我的设置"
      ,"spread": true
      ,"list": [{
        "name": "info"
        ,"title": "基本资料"
      },{
        "name": "password"
        ,"title": "修改密码"
      }]
    }]
  }, {
    "name": "get"
    ,"title": "授权"
    ,"icon": "layui-icon-auz"
    ,"jump": "system/get"
  }]
}