微信小程序二维数组分组

绝地灬酷狼 2022-12-07 01:23 190阅读 0赞

// data二维数组
    // name 按该字段的值分组
    fenzu(data,name){ 
        let that = this
        let arr = []
        for(var i=0;i<data.length;i++){ 
          arr.push(data[i].address)
        }
        let arrs = that.quchong(arr)
        let datas = []
        
        for(var i=0;i<arrs.length;i++){ 
          let item = []
          item.push(arrs[i])
          for(var j=0;j<data.length;j++){ 
            if(data[j][name] == arrs[i]){ 
              item.push(data[j])
            }
          }
          datas.push(item)
        }
        return datas
      },
      quchong(arr){ 
        console.log(arr)
        var tempArr = []; //返回的值
        var indexArr= []; //返回的索引
          for (var i = 0; i < arr.length; i++) { 
            if (tempArr.indexOf(arr[i]) == -1) { 
              tempArr.push(arr[i]);
              indexArr.push(i)
            } else if (tempArr.indexOf(arr[i])>=0){ 
              for(var j = 0;j<tempArr.length;j++){ 
              if (tempArr[j] == arr[i]) { 
                tempArr.splice(j, 1, tempArr[j]);
                indexArr.splice(j, 1, i);
              }
            }
          }
        }
        return tempArr
      },