JS 获取指定日期是星期几？

代码

 function getWeekday(date) {
    const weekdays = ['周日', '周一', '周二', '周三', '周四', '周五', '周六'];
    const weekday = new Date(date).getDay();
    return weekdays[weekday];
}

测试效果：

      console.log("2023-12-27====", getWeekday('2023-12-27'))
      console.log("2023-12-29====", getWeekday('2023-12-29'))