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



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asked Apr 10, 2025 by avibootz
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1 Answer

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function getLast30Dates(): string[] {
    const dates: any[] = [];
    const today: Date = new Date();
 
    for (let i: number = 0; i < 30; i++) {
        const day: Date = 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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