曜日を取得する
Optional
年月日
時差 (default: 9)
number
dayOfWeekSimple("2000-01-01");dayOfWeekSimple("2000:01:01");dayOfWeekSimple("2000/01/01");dayOfWeekSimple({ year: 2000, mon: 1, day: 1 });dayOfWeekSimple(new Date(2000, 0, 1)); Copy
dayOfWeekSimple("2000-01-01");dayOfWeekSimple("2000:01:01");dayOfWeekSimple("2000/01/01");dayOfWeekSimple({ year: 2000, mon: 1, day: 1 });dayOfWeekSimple(new Date(2000, 0, 1));
曜日を取得する