javascript - 检查今天是否在日期数组中

Question

我正在尝试运行一个脚本，根据预定的日期数组(公共(public)假期)检查今天的日期。但是，我很难理解阵列设置。我已经让脚本在没有使用单个日期的数组的情况下工作，但是不知道如何将其转换为具有多个选项进行检查的数组。

编写的代码如下；

var today = new Date().getHours();
var daycheck = new Date().getDay();
var holidayArray = new Date('12/19/2019');
var todayDate = new Date();

if (holidayArray.setHours(0, 0, 0, 0) == todayDate.setHours(0, 0, 0, 0)) {
  alert('This is outside of business hours (Public Holiday).');
  window.history.back();
} else {
  if (today <= 8 || today >= 17) {
    alert('This is outside of business hours. General access is provided from 9am - 5pm Monday to Friday');
    window.history.back();
  }
  else {
    if (daycheck == 0 || daycheck == 6) {
      alert('This is outside of business hours(weekend).');
      window.history.back();
    }
    else {
      if (confirm('It is currently within business hours during the week. You can now continue.')) {
        window.location.href = "https://URL";
      }
      else { window.history.back() }
    }
  }
}

我需要帮助向 holidayArray 变量添加其他日期，因为每次我尝试某些操作时它都不起作用。

提前致谢

Answer 1

在 JavaScript 中，您可以通过以下语法创建数组: var HolidayArray = [new Date("12/19/2019"), new Date("12/20/2019"), new Date("12/21")/2019")]

然后你必须循环遍历这个数组，例如:

for (let holiday of holidayArray) {
    // Place your IF statements in here and make your checks against the value "holiday". For example:

    if (holiday.setHours(0,0,0,0) == todayDate.setHours(0,0,0,0)) {
        alert("This is outside of business hours (Public Holiday).");
        window.history.back();
    }

}

这将按顺序循环遍历您的数组。 holiday 将代表数组中的每个值。