What is the most graceful method to calculate the average date from an array containing moment.js dates?

I have been using the reduce method along with the dayOfYear function to calculate the average date from an array of dates.

While my current solution functions well for dates within the same year, it unfortunately overlooks the discrepancy in years between the dates.

return moment().dayOfYear(Math.round(items.reduce((a, b) => a + moment(b).dayOfYear(), 0) / items.length)).format('YYYY-MM-DD');

Can anyone provide some guidance on how I can modify the above code to account for the difference in years between the dates? Any assistance would be greatly appreciated.

javascripttypescriptmomentjs

Answer №1

To solve this problem, we can calculate the average of the numbers representing the dates and then convert it into a date data type with the help of Moment.js or a similar library.

Answer №2

I found the perfect answer to my issue by omitting the dayOfYear and maintaining it as a complete moment.js date. This approach now factors in the disparity between years.

return moment(Math.round(items.reduce((a, b) => a + moment(b), 0) / items.length)).format('YYYY-MM-DD');

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