Sorting issue in PrimeVue DataTable is preventing the proper sorting of date columns

Question

Sorting issue in PrimeVue DataTable is preventing the proper sorting of date columns

I am encountering an issue with sorting dates in a DataTable. The DataTable structure is as follows:

<DataTable
  :rows = "5"
  :value = "apiItems"
>
  <Column
    :field="initialDate"
    :header="Initial Date"
    :sortable="true"
    />
    
    <Column
    :field="finishDate"
    :header="Finish Date"
    :sortable="true"
    />
</DataTable>

The data fields 'initialDate' and 'finishDate' are retrieved from an API call and contain date-time values like "08/21/2022 11:43:12". However, when attempting to sort these columns, the sorting is based on the first number in the string (the month) rather than the actual date.

EXPECTED SORTING BEHAVIOR:

Ascending:
"07/01/2022 12:01:09"
"08/22/2021 11:43:12"

ATTEMPTS MADE:

I have tried converting the date strings into JavaScript Date objects using new Date(initialDate).toLocaleString(), but the sorting issue persists.

Any help or suggestions on resolving this would be greatly appreciated. Thank you for your assistance.

javascript vue.js sorting datatable primevue

Answer 1

Answer №1

If you want to organize dates in order, you need to be able to compare them, and the most effective method is by converting them into timestamps (which represent the number of milliseconds that have passed since January 1, 1970, 00:00:00 UTC).

const date1 = new Date('08/22/2021 11:43:12')
const date2 = new Date('07/01/2022 12:01:09')

You can get the timestamp of a Date object using either the getTime() function or via the unary plus (+) operator.

console.log(date1.getTime()) // 1629603792000
console.log(+date2) // 1656648069000

Sorting in ascending order

The sorting process becomes quite straightforward with the use of the sort() function.

console.log([date1, date2].sort((a,b) => +b - +a))

Complete example

const date1 = new Date('08/22/2021 11:43:12')
const date2 = new Date('07/01/2022 12:01:09')

console.log([date1, date2].sort((a,b) => +b - +a))

Answer 2

If you want to organize dates in order, you need to be able to compare them, and the most effective method is by converting them into timestamps (which represent the number of milliseconds that have passed since January 1, 1970, 00:00:00 UTC).

const date1 = new Date('08/22/2021 11:43:12')
const date2 = new Date('07/01/2022 12:01:09')

You can get the timestamp of a Date object using either the getTime() function or via the unary plus (+) operator.

console.log(date1.getTime()) // 1629603792000
console.log(+date2) // 1656648069000

Sorting in ascending order

The sorting process becomes quite straightforward with the use of the sort() function.

console.log([date1, date2].sort((a,b) => +b - +a))

Complete example

const date1 = new Date('08/22/2021 11:43:12')
const date2 = new Date('07/01/2022 12:01:09')

console.log([date1, date2].sort((a,b) => +b - +a))

Sorting issue in PrimeVue DataTable is preventing the proper sorting of date columns

Answer №1

Complete example

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