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How to create an array of dates starting with today and going back the last 30 days in JavaScript

1 Answer

0 votes
function getLast30Dates() {
    const dates = [];
    const today = new Date();

    for (let i = 0; i < 30; i++) {
        const day = new Date(today);
        day.setDate(today.getDate() - i);
        dates.push(day.toISOString().split('T')[0]); // Format as YYYY-MM-DD
    }

    return dates;
}

console.log(getLast30Dates());



/*
run:

[
  '2025-04-10', '2025-04-09', '2025-04-08',
  '2025-04-07', '2025-04-06', '2025-04-05',
  '2025-04-04', '2025-04-03', '2025-04-02',
  '2025-04-01', '2025-03-31', '2025-03-30',
  '2025-03-29', '2025-03-28', '2025-03-27',
  '2025-03-26', '2025-03-25', '2025-03-24',
  '2025-03-23', '2025-03-22', '2025-03-21',
  '2025-03-20', '2025-03-19', '2025-03-18',
  '2025-03-17', '2025-03-16', '2025-03-15',
  '2025-03-14', '2025-03-13', '2025-03-12'
]

*/

 



answered Apr 10, 2025 by avibootz
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