Jquery计算两个日期之间的月份

// 获取两个日期的年、月、日
var startDate = new Date("2022-01-01");
var endDate = new Date("2022-12-31");
var startYear = startDate.getFullYear();
var startMonth = startDate.getMonth();
var startDay = startDate.getDate();
var endYear = endDate.getFullYear();
var endMonth = endDate.getMonth();
var endDay = endDate.getDate();

// 计算月份差
var months;
if (endYear === startYear) {
  months = endMonth - startMonth;
} else {
  months = 12 * (endYear - startYear) + endMonth - startMonth;
}

// 考虑起始日期和结束日期的天数差对月份差的影响
if (endDay < startDay) {
  months--;
}

console.log("两个日期之间的月份差为：" + months);