js实现把多个数据分成3个一组

主要代码:

var stuCount  = res.data;

resetDataFun(stuCount,5)
/**
* col 表示列
* stuCount 表示数组
*/

function resetDataFun(stuCount,col){
                if (stuCount.length>0){
                    var objList = new Object();
                    var arr = new Array();
                    var cow = stuCount.length / col == 0 ? stuCount.length / col : Math.ceil((stuCount.length / col));
                    console.log('行数',cow);
                    for (var i = 1; i <= cow; i++) {
                        var tempArr = [];
                        var temp;
                        if (col * i > stuCount.length) {
                            temp = stuCount.length;
                        } else {
                            temp = col * i;
                        }
                        for (var j = col * (i - 1); j < temp; j++) {
                            tempArr.push(stuCount[j]);
                        }
                        var newObj = new Object();
                        newObj.data = tempArr
                        arr.push(newObj);
                  }
                    objList.data = arr;
                    this.resetData = objList;
                    console.log(objList);
                }
            }

 

　　得到的数据为三个一组