Get date range depending on the set number of days

get-date-range.js

/**
 * Get date range
 *
 * @example
 * getDateRange(30);
 *
 * @param {number} [days=1] - Number of days
 * @returns {{start: string, end: string}}
 */
const getDateRange = (days = 1) => {
    const daysTimestamp = days * 24 * 60 * 60 * 1000;

    const timestampEnd = new Date().getTime();
    const timestampStart = timestampEnd - daysTimestamp;

    const start = new Date(timestampStart).toISOString().substr(0, 10).replace(/-/g, '');
    const end = new Date(timestampEnd).toISOString().substr(0, 10).replace(/-/g, '');

    return {
        start: start,
        end: end
    }
};