星期名称

Locale#weekdays 应该是星期名称的数组。

¥Locale#weekdays should be an array of the weekdays names.

This requires the UpdateLocale plugin to work

dayjs.extend(updateLocale)

dayjs.updateLocale('en', {
  weekdays: [
    "Sunday", "Monday", "Tuesday", "Wednesday", "Thursday", "Friday", "Saturday"
  ]
})