js时间累加

function addDays(date, days) {
    const result = new Date(date);
    result.setDate(result.getDate() + days);
    return result;
}

const today = new Date();
console.log("Today:", today);
const tomorrow = addDays(today, 1);
console.log("Tomorrow:", tomorrow);

function addHours(date, hours) {
    const result = new Date(date);
    result.setHours(result.getHours() + hours);
    return result;
}

const now = new Date();
console.log("Now:", now);
const nextHour = addHours(now, 1);
console.log("Next hour:", nextHour);

function addMinutes(date, minutes) {
    const result = new Date(date);
    result.setMinutes(result.getMinutes() + minutes);
    return result;
}

const currentMinute = new Date();
console.log("Current minute:", currentMinute);
const nextMinute = addMinutes(currentMinute, 30);
console.log("Next 30 minutes:", nextMinute);

function addMonths(date, months) {
    const result = new Date(date);
    const expectedMonth = result.getMonth() + months;
    result.setMonth(expectedMonth % 12);
    if (expectedMonth >= 12) {
        result.setFullYear(result.getFullYear() + Math.floor(expectedMonth / 12));
    }
    return result;
}

const startOfMonth = new Date(2023, 1, 1); // February 1, 2023
console.log("Start of month:", startOfMonth);
const endOfMonth = addMonths(startOfMonth, 1);
console.log("End of next month:", endOfMonth);