R:获取一个季度的周数

function getQuarterWeeks(start, end) {
  // 计算天数差
  const diffTime = Math.abs(end - start);
  const diffDays = Math.ceil(diffTime / (1000 * 60 * 60 * 24));

  // 计算周数
  const weeks = Math.floor(diffDays / 7);

  // 调整周数
  const adjustedWeeks = start.getDay() > end.getDay() ? weeks - 1 : weeks;

  return adjustedWeeks;
}

// 示例使用
const start = new Date('2022-01-01');
const end = new Date('2022-03-31');
const quarterWeeks = getQuarterWeeks(start, end);
console.log(`第一季度的周数为：${quarterWeeks}`);