I'd like to get a date between the start and end dates The first value, is the desired value. be worth! BUT arrTemp[j] value, Not the desired value. Do you know why? Answer Use moment, never try and roll your own date functions.

javascript date String array push issue! Not the desired value

I’d like to get a date between the start and end dates

  d = 'Tue Oct 2 00:00:00 UTC+0900 2018';
  date2 = 'Fri Oct 5 00:00:00 UTC+0900 2018';

  var arrTemp = new Array();
  //var dispalyHTML = '';

while(d <= date2){
  //dispalyHTML += d.yyyymmdd();
  var date_yy = d.getFullYear();
  var date_mm = (d.getMonth()+1) < 10 ? '0' +(d.getMonth()+1):(d.getMonth()+1);
  var date_dd = d.getDate() <10 > '0'+d.getDate():d.getDate();

  alert("date_yy+date_mm+date_dd=="+date_yy+date_mm+date_dd);

  **arrTemp.push(date_yy+date_mm+date_dd);**
  d = d.addDays(1);
}


for(j=0; j < arrTemp.length; j++){

    alert("arrTemp[j]=="+arrTemp[j]);
 }

The first value, is the desired value. be worth!

 date_yy+date_mm+date_dd==20181002
 date_yy+date_mm+date_dd==20181003
 date_yy+date_mm+date_dd==20181004
 date_yy+date_mm+date_dd==20181005

BUT arrTemp[j] value, Not the desired value.

arrTemp[j]==202802
arrTemp[j]==202803
arrTemp[j]==202804
arrTemp[j]==202805

Do you know why?

Answer

Use moment, never try and roll your own date functions.

let date1 = moment('02/10/2018', 'DD/MM/YYYY');
let date2 = moment('05/10/2018', 'DD/MM/YYYY');
 
let noOfDays = moment(date2).diff(moment(date1), 'days') + 1;
 
days = (date, noOfDays) => Array.from(Array(noOfDays), (_, i) => moment(date, 'DD/MM/YYYY').add(i, 'd').format('YYYYMMDD'));
 
console.log(days('02/10/2018', noOfDays));

<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.22.2/moment.min.js"></script>

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Answer