Array(6) [
"10-2022 - 12-2022",
"08-2022 - 09-2022",
"07-2023 - 10-2023",
"04-2022 - 07-2022",
"01-2023 - 06-2023",
"01-2022 - 03-2022" ]
I want to sort this array of date ranges to show the latest date range at the beginning of the array. Having some trouble because the dates are in string format.
Try with this utility function:
const arr = [
"10-2022 - 12-2022",
"08-2022 - 09-2022",
"07-2023 - 10-2023",
"07-2023 - 11-2023",
"04-2022 - 07-2022",
"01-2023 - 06-2023",
"01-2022 - 03-2022"
];
const getYearMonth = (date) => {
const dateSplit = date.split('-');
if (dateSplit.length < 2) return '';
return dateSplit[1] + '-' + dateSplit[0];
}
const sortedArr = arr.sort((a, b) => {
const aSplit = a.split(' - ');
const bSplit = b.split(' - ');
const aYearMonthStart = getYearMonth(aSplit[0]);
const bYearMonthStart = getYearMonth(bSplit[0]);
// Sort decreasing by start
if (aYearMonthStart > bYearMonthStart) return -1;
if (aYearMonthStart < bYearMonthStart) return 1;
// Sort decreasing by end date if start date equal
const aYearMonthEnd = getYearMonth(aSplit[1]);
const bYearMonthEnd = getYearMonth(bSplit[1]);
if (aYearMonthEnd > bYearMonthEnd) return -1;
if (aYearMonthEnd < bYearMonthEnd) return 1;
// Equal dates
return 0;
})
console.log(sortedArr);
Array.sort((a, b) => b.localeCompare(a))
Array.sortcan take acomparefunction as a parameter so you need to implement one which works with your input. Also, be aware thatArray.sortmutates the array, which will make you run into problems with React if you don't make a copy beforehand.Array.sortbut had no luck. I think its because it takes a range of dates as the argument ` "10-2022 - 12-2022"` .