Combine Arrays in a firebase for loop javascript
I am trying to combine arrays of dates from firebase. I am retrieving the start date and end date on firebase and after that I have a method that gets all between the 2 dates.
firebase.database().ref("dummy_dates").once("value", snap => {
if (snap.val()) {
snap.forEach(snapShot => {
console.log('start date: ' + snapShot.val().startTime + "nend date: " + snapShot.val().endTime)
this.enumerateDaysBetweenDates(snapShot.val().startTime, snapShot.val().endTime);
});
}
});
This method gets all the days between the 2 days I'm retrieving from firebase using the above firebase for loop:
enumerateDaysBetweenDates(startDate, endDate) {
var dates = ;
var finalDate = ;
var currDate = moment(startDate).startOf('day');
var lastDate = moment(endDate).startOf('day');
while (currDate.add(1, 'days').diff(lastDate) < 0) {
dates.push(currDate.clone().toDate());
}
console.log("All Dates: ", dates)
return dates;
}
This is how my console look like after running the code:
This is my firebase structure:
What I am trying to do is to merge/combine all the arrays of dates I am getting from my firebase list using the for loop to be one array with all dates
I have tried using the concat method but it did not work, instead it adds the same array on the same array times the number of index. I have also tried this, but it's the same method I'm familiar with(the concat method).
I need help in merging all my arrays from firebase to be in 1 array.
javascript arrays firebase firebase-realtime-database
edited Nov 26 '18 at 11:36
André Kool
3,43092740
asked Nov 26 '18 at 11:28
ZackZack
1539
|
show 6 more comments
I am trying to combine arrays of dates from firebase. I am retrieving the start date and end date on firebase and after that I have a method that gets all between the 2 dates.
firebase.database().ref("dummy_dates").once("value", snap => {
if (snap.val()) {
snap.forEach(snapShot => {
console.log('start date: ' + snapShot.val().startTime + "nend date: " + snapShot.val().endTime)
this.enumerateDaysBetweenDates(snapShot.val().startTime, snapShot.val().endTime);
});
}
});
This method gets all the days between the 2 days I'm retrieving from firebase using the above firebase for loop:
enumerateDaysBetweenDates(startDate, endDate) {
var dates = ;
var finalDate = ;
var currDate = moment(startDate).startOf('day');
var lastDate = moment(endDate).startOf('day');
while (currDate.add(1, 'days').diff(lastDate) < 0) {
dates.push(currDate.clone().toDate());
}
console.log("All Dates: ", dates)
return dates;
}
This is how my console look like after running the code:
This is my firebase structure:
What I am trying to do is to merge/combine all the arrays of dates I am getting from my firebase list using the for loop to be one array with all dates
I have tried using the concat method but it did not work, instead it adds the same array on the same array times the number of index. I have also tried this, but it's the same method I'm familiar with(the concat method).
I need help in merging all my arrays from firebase to be in 1 array.
javascript arrays firebase firebase-realtime-database
edited Nov 26 '18 at 11:36
André Kool
3,43092740
asked Nov 26 '18 at 11:28
ZackZack
1539
Where are you concating the output array inside the for loop?
– Hassan Imam
Nov 26 '18 at 11:45
I've removed that line, I will add it back just now but it's on the enumerateDaysBetweenDates() method outside the while loop.
– Zack
Nov 26 '18 at 11:47
Instead of usingarray#forEach, you can usearray#reduceand concat your array.
– Hassan Imam
Nov 26 '18 at 11:50
Thanks, let me try that now.
– Zack
Nov 26 '18 at 11:53
Good luck, in case you face any issue revert here.
– Hassan Imam
Nov 26 '18 at 11:54
|
show 6 more comments
I am trying to combine arrays of dates from firebase. I am retrieving the start date and end date on firebase and after that I have a method that gets all between the 2 dates.
firebase.database().ref("dummy_dates").once("value", snap => {
if (snap.val()) {
snap.forEach(snapShot => {
console.log('start date: ' + snapShot.val().startTime + "nend date: " + snapShot.val().endTime)
this.enumerateDaysBetweenDates(snapShot.val().startTime, snapShot.val().endTime);
});
}
});
This method gets all the days between the 2 days I'm retrieving from firebase using the above firebase for loop:
enumerateDaysBetweenDates(startDate, endDate) {
var dates = ;
var finalDate = ;
var currDate = moment(startDate).startOf('day');
var lastDate = moment(endDate).startOf('day');
while (currDate.add(1, 'days').diff(lastDate) < 0) {
dates.push(currDate.clone().toDate());
}
console.log("All Dates: ", dates)
return dates;
}
This is how my console look like after running the code:
This is my firebase structure:
What I am trying to do is to merge/combine all the arrays of dates I am getting from my firebase list using the for loop to be one array with all dates
I have tried using the concat method but it did not work, instead it adds the same array on the same array times the number of index. I have also tried this, but it's the same method I'm familiar with(the concat method).
I need help in merging all my arrays from firebase to be in 1 array.
javascript arrays firebase firebase-realtime-database
edited Nov 26 '18 at 11:36
André Kool
3,43092740
asked Nov 26 '18 at 11:28
ZackZack
1539
I am trying to combine arrays of dates from firebase. I am retrieving the start date and end date on firebase and after that I have a method that gets all between the 2 dates.
firebase.database().ref("dummy_dates").once("value", snap => {
if (snap.val()) {
snap.forEach(snapShot => {
console.log('start date: ' + snapShot.val().startTime + "nend date: " + snapShot.val().endTime)
this.enumerateDaysBetweenDates(snapShot.val().startTime, snapShot.val().endTime);
});
}
});
This method gets all the days between the 2 days I'm retrieving from firebase using the above firebase for loop:
enumerateDaysBetweenDates(startDate, endDate) {
var dates = ;
var finalDate = ;
var currDate = moment(startDate).startOf('day');
var lastDate = moment(endDate).startOf('day');
while (currDate.add(1, 'days').diff(lastDate) < 0) {
dates.push(currDate.clone().toDate());
}
console.log("All Dates: ", dates)
return dates;
}
This is how my console look like after running the code:
This is my firebase structure:
What I am trying to do is to merge/combine all the arrays of dates I am getting from my firebase list using the for loop to be one array with all dates
I have tried using the concat method but it did not work, instead it adds the same array on the same array times the number of index. I have also tried this, but it's the same method I'm familiar with(the concat method).
I need help in merging all my arrays from firebase to be in 1 array.
javascript arrays firebase firebase-realtime-database
javascript arrays firebase firebase-realtime-database
edited Nov 26 '18 at 11:36
André Kool
3,43092740
asked Nov 26 '18 at 11:28
ZackZack
1539
edited Nov 26 '18 at 11:36
André Kool
3,43092740
asked Nov 26 '18 at 11:28
ZackZack
1539
edited Nov 26 '18 at 11:36
André Kool
3,43092740
edited Nov 26 '18 at 11:36
André Kool
3,43092740
edited Nov 26 '18 at 11:36
André Kool
3,43092740
3,43092740
asked Nov 26 '18 at 11:28
ZackZack
1539
asked Nov 26 '18 at 11:28
ZackZack
1539
asked Nov 26 '18 at 11:28
ZackZack
1539
1539
Where are you concating the output array inside the for loop?
– Hassan Imam
Nov 26 '18 at 11:45
I've removed that line, I will add it back just now but it's on the enumerateDaysBetweenDates() method outside the while loop.
– Zack
Nov 26 '18 at 11:47
Instead of usingarray#forEach, you can usearray#reduceand concat your array.
– Hassan Imam
Nov 26 '18 at 11:50
Thanks, let me try that now.
– Zack
Nov 26 '18 at 11:53
Good luck, in case you face any issue revert here.
– Hassan Imam
Nov 26 '18 at 11:54
|
show 6 more comments
Where are you concating the output array inside the for loop?
– Hassan Imam
Nov 26 '18 at 11:45
I've removed that line, I will add it back just now but it's on the enumerateDaysBetweenDates() method outside the while loop.
– Zack
Nov 26 '18 at 11:47
Instead of usingarray#forEach, you can usearray#reduceand concat your array.
– Hassan Imam
Nov 26 '18 at 11:50
Thanks, let me try that now.
– Zack
Nov 26 '18 at 11:53
Good luck, in case you face any issue revert here.
– Hassan Imam
Nov 26 '18 at 11:54
Where are you concating the output array inside the for loop?
– Hassan Imam
Nov 26 '18 at 11:45
Where are you concating the output array inside the for loop?
– Hassan Imam
Nov 26 '18 at 11:45
I've removed that line, I will add it back just now but it's on the enumerateDaysBetweenDates() method outside the while loop.
– Zack
Nov 26 '18 at 11:47
I've removed that line, I will add it back just now but it's on the enumerateDaysBetweenDates() method outside the while loop.
– Zack
Nov 26 '18 at 11:47
Instead of using
array#forEach, you can use array#reduce and concat your array.– Hassan Imam
Nov 26 '18 at 11:50
Instead of using
array#forEach, you can use array#reduce and concat your array.– Hassan Imam
Nov 26 '18 at 11:50
Thanks, let me try that now.
– Zack
Nov 26 '18 at 11:53
Thanks, let me try that now.
– Zack
Nov 26 '18 at 11:53
Good luck, in case you face any issue revert here.
– Hassan Imam
Nov 26 '18 at 11:54
Good luck, in case you face any issue revert here.
– Hassan Imam
Nov 26 '18 at 11:54
|
show 6 more comments
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Where are you concating the output array inside the for loop?
– Hassan Imam
Nov 26 '18 at 11:45
I've removed that line, I will add it back just now but it's on the enumerateDaysBetweenDates() method outside the while loop.
– Zack
Nov 26 '18 at 11:47
Instead of using
array#forEach, you can usearray#reduceand concat your array.– Hassan Imam
Nov 26 '18 at 11:50
Thanks, let me try that now.
– Zack
Nov 26 '18 at 11:53
Good luck, in case you face any issue revert here.
– Hassan Imam
Nov 26 '18 at 11:54