Data structure transformation

Preface

    In production and life, many enterprises use sql database. In business, in order to reduce database access and data transmission to the front, I choose to change the data format
    Through the two-dimensional data format, it is converted into a tree structure.

    Since I have been in the position for half a year, and my business is relatively small, there is no guidance. Now I will share it for your reference and correction.

function sortData(Data){
        var vernier,reData,X0,X1;
        reData = [];
        for(var i = 0;i<Data.length;i++){
            vernier = Data[i].START_DATE_TIME.substring(0,10);
            X0 = Data[i].START_DATE_TIME.substring(0,10);
            X1 = Data[i].END_DATE_TIME || new Date();
            if(typeof X1 === 'object'){
                X1 = X1.getFullYear() + "-" + (X1.getMonth() + 1) + "-" + X1.getDate()
            }
            X1 = X1.substring(0,10);
            var dateArr = inside(X0,X1,1)

            for(var j=0;j<dateArr.length;j++){
                vernier = dateArr[j];
                !!reData[dateArr[j]]?reData[dateArr[j]].push(Data[i]):reData[dateArr[j]] = [Data[i]]
            }
            //debugger;
        }
        return reData
    }

    function inside(X0,X1,Interval){
        var popArr = [];
        var firstInt = new Date(X0);
        var secondInt = (new Date(X1) - firstInt);
        var days = Math.abs(secondInt / 86400000);
        var freq = Math.ceil(days / Interval);
        var i = 0;
        var thenDate = 0;
        while (i <= freq) {
            thenDate = new Date(firstInt - 0 + i * Interval * 86400000);
            thenDate = thenDate.getFullYear() + "-" + (thenDate.getMonth() + 1) + "-" + thenDate.getDate(); 
            popArr.push(thenDate);
            i++;
        }
        return popArr;
    }

No time for the mind

People don't pretend to be B pseudo teenagers, by h.k

January 16, 2018
Looking at source code is a hobby, solving problems is a profession -- h.k