My task involves iterating through multiple date intervals, like:
- 09/06/2023 - 15/06/2023
- 28/05/2023 - 02/06/2023
- 17/06/2023 - 18/06/2023
- 29/06/203 - 04/07/2023 ...and so on
I want to extract the day numbers for a specific month only, for example, June (06).
The expected output should be an array like this:
var june = [09,10,11,12,13,14,15,01,02,17,18,29,30];To achieve this, I followed these steps:
a. Queried in PHP to retrieve departing, returning dates, and number of date intervals as string arrays (not Date objects)
b. Created JavaScript arrays for departing, returning dates: var departure, var rback, var number
c. Defined an empty array 'days':
var days=[];
d. Looped through all date intervals to obtain dates between the intervals
function enumerateDaysBetweenDates(startDate, endDate) {
startDate = moment(startDate,"DD/MM/YYYY");
endDate = moment(endDate,"DD/MM/YYYY");
var now = startDate, dates = [];
while (now.isBefore(endDate) || now.isSame(endDate)) {
dates.push(now.format("DD/MM/YYYY"));
now.add(1, 'days');
}
return dates;
};
for (i = 0; i < number.length; i++) {
var mdepart=departure[i];
var mrback=rback[i];
days.push(enumerateDaysBetweenDates(mdepart,mrback));
};
Next step is to filter out dates that are not in June:
function checkd(num) {
return num.includes("/06/");
};
var june=days.filter(checkd);
The issue I encountered is "days.filter is not a function" error...
If I try using
var june = Object.values(days).filter(checkd);I'm unsure about the problem. Is it because the initial date array elements were defined as strings and now they are treated as dates with moment.js?
Complete code snippet:
var days=[];
var number=[1,2,3,4];
var departure=[09/06/2023,28/05/2023, 17/06/2023, 29/06/2023];
var rback=[15/06/2023,02/06/2023,18/06/2023,04/07/2023];
function enumerateDaysBetweenDates(startDate, endDate) {
startDate = moment(startDate,"DD/MM/YYYY");
endDate = moment(endDate,"DD/MM/YYYY");
var now = startDate, dates = [];
while (now.isBefore(endDate) || now.isSame(endDate)) {
dates.push(now.format("DD/MM/YYYY"));
now.add(1, 'days');
}
return dates;
};
for (i = 0; i < number.length; i++) {
var mdepart=departure[i];
var mrback=rback[i];
days.push(enumerateDaysBetweenDates(mdepart,mrback));
};
//Now I need to filter all dates that are not in June:
function checkd(num) {
return num.includes("/06/");
};
var june=days.filter(checkd);
//Error days.filter or empty array....<script src="https://cdnjs.cloudflare.com/ajax/libs/moment.js/2.24.0/moment.min.js"></script>