Sort Array of JSON Object by date values

sort_array_of_JSON_objects.js

// Sort array of JSON objects by date value
const records = [
  {
    order_id: 12345,
    order_date: "2020-03-23"
  },
  {
    order_id: 12346,
    order_date: "2020-03-20"
  },
  {
    order_id: 12347,
    order_date: "2020-03-22"
  }
]

records.sort((a, b) => {
  return new Date(a.order_date) - new Date(b.order_date); // descending
})

records.sort((a, b) => {
  return new Date(b.order_date) - new Date(a.order_date); // ascending
})

Thanks much but how can I check if its sorted

Thanks, brother! you saved my day!

Very nice and clean way to handle it 👍

----ductionData.ts----JSON ARRAY WHICH NEED TO SORTED PROPERLY------
export const ductions: Iduction[] = [
{ 'Date': '2022-12-07', ... },
{ 'Date': '2022-12-08', ... },
{ 'Date': '2022-12-09', ... },
{ 'Date': '2022-12-10', ... },
];

----uploadDuctionData.ts----------------------------------------------------------
...
/** ! Presented example is WRONG

• As time elevates it means the epoch-time (which is actually a number presentation)
• grows each second with 1 (https://www.epochconverter.com/), right!
• So, in case of descending sorting, the next substraction cycle need to
• return a smaller number compared to the previous substraction
• to obtain a list of decreasing epoch-times (numbers)
• records.sort((a, b) => {
• // => THIS NOT descending sorting... <=//
• return new Date(a.order_date) - new Date(b.order_date);
• // => ...it is 'ASCENDING' sorting <=//
• }); */

// 👉️ Goal descending sorting on 'Date'-key of imported JSON array
// 👉️ 'hier (FR)' === 'yesterday (EN)'
ductions.sort((avantHier (a): Iduction, hier (b): Iduction) => {
const dayBeforeYesterDate = new Date(avantHier.Date (a));
const yesterdayDate = new Date(hier.Date (b));
// 👉️ Ascending sorting means 'dayBeforeYesterDate (avantHier.Date)' will be listed BEFORE younger dates
// return dayBeforeYesterDate.getTime() - yesterdayDate.getTime();
// 👉️ Descending sorting means 'yesterdayDate (hier.Date)' need to be listed BEFORE older dates
return yesterdayDate.getTime() - dayBeforeYesterDate.getTime(); // descending sorting
});
ductions.forEach(doc => console.log(JSON.stringify(doc)));
...

---

OUTPUT (terminal on 'uploadDuctionData.ts')
{"Date":"2022-12-27", ... }
{"Date":"2022-12-26", ... }
{"Date":"2022-12-25", ... }
{"Date":"2022-12-24", ... }

Thx !