jquery中的重叠日期格式

function checkDateOverlap(start1, end1, start2, end2) {
  return (start1 <= end2 && start2 <= end1);
}

// 示例用法
var range1Start = new Date('2022-01-01');
var range1End = new Date('2022-01-10');
var range2Start = new Date('2022-01-05');
var range2End = new Date('2022-01-15');

if (checkDateOverlap(range1Start, range1End, range2Start, range2End)) {
  console.log('日期范围重叠！');
} else {
  console.log('日期范围不重叠。');
}