Microsoft Sharepoint列表-提取两个日期之间的差异，包括年份

function getDaysBetweenDates(startDate, endDate) {
    var start = new Date(startDate);
    var end = new Date(endDate);
    var timeDiff = Math.abs(end.getTime() - start.getTime());
    var diffDays = Math.ceil(timeDiff / (1000 * 3600 * 24));
    return diffDays;
}

function getYearsBetweenDates(startDate, endDate) {
    var start = new Date(startDate);
    var end = new Date(endDate);
    var yearsDiff = end.getFullYear() - start.getFullYear();
    if (end.getMonth() < start.getMonth() || 
        (end.getMonth() === start.getMonth() && end.getDate() < start.getDate())) {
        yearsDiff--;
    }
    return yearsDiff;
}

// 示例使用
var startDate = "2020-01-01";
var endDate = "2023-06-30";

var daysDiff = getDaysBetweenDates(startDate, endDate);
var yearsDiff = getYearsBetweenDates(startDate, endDate);

console.log("Days between dates: " + daysDiff);
console.log("Years between dates: " + yearsDiff);