js获取当月的天数

原创于 2023-05-30 17:23:56 发布 · 1k 阅读

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#javascript #前端 #开发语言

function getDaysInCurrentMonth() {
  const currentDate = new Date(); // Get current date
  const currentYear = currentDate.getFullYear(); // Get current year
  const currentMonth = currentDate.getMonth(); // Get current month

  const firstDayOfMonth = new Date(currentYear, currentMonth, 1); // First day of the month
  const lastDayOfMonth = new Date(currentYear, currentMonth + 1, 0); // Last day of the month

  const totalDays = lastDayOfMonth.getDate(); // Get number of days in the current month

  const dateRange = [];
  for (let day = 1; day <= totalDays; day++) {
    const date = new Date(currentYear, currentMonth, day);
    dateRange.push(date);
  }

  return dateRange;
}

const daysInCurrentMonth = getDaysInCurrentMonth();
console.log("Date range in the current month:", daysInCurrentMonth);