How to sort array of objects have date properties? [duplicate]

Question

I have an array :

    const arr = [
      { name: 'abc', date: '30/03/2014' },
      { name: 'cde', date: '30/03/2015' },
      { name: 'fgh', date: '20/04/2014' },
      { name: 'xyz', date: '17/09/2014' },
    ];

How can I sort this array so that the output would be like this:

    const arr = [
      { name: 'cde', date: '30/03/2015' },
      { name: 'xyz', date: '17/09/2014' },
      { name: 'fgh', date: '20/04/2014' },
      { name: 'abc', date: '30/03/2014' },
    ];

// sort the array with date in latest first.

you have to set the date format to "YYYY-MM-DD" then you can compare directly — Ravi
– Ravi, Commented Sep 1, 2020 at 12:07

Sascha A. · Accepted Answer · 2020-09-01 12:28:39Z

0

Using Array#sort with your own sorting comperator. For this split the dates and build with taht in the right sequence a new Date which can be compared.

    const arr = [
      { name: 'abc', date: '30/03/2014' },
      { name: 'cde', date: '30/03/2015' },
      { name: 'fgh', date: '20/04/2014' },
      { name: 'xyz', date: '17/09/2014' },
    ];
    
    arr.sort((a,b) => {
        let tempA = a.date.split('/');
        let tempB = b.date.split('/');
        return ((new Date(tempB[2],tempB[1],tempB[0])) - (new Date(tempA[2],tempA[1],tempA[0])));
    });
    
    console.log(arr);

answered Sep 1, 2020 at 12:28

Sascha A.

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