ts获取当前年份的所有周末

public getWeekendDate(): Array<string> {
		let date: Date = new Date()
		let year: number = date.getFullYear()
		let m: number,
			d: number,
			day: any,
			dayNum: any,
			result: Array<string> = []
		for (m = 1; m <= 12; m++) {
			switch (m) {
				case 1:
				case 3:
				case 5:
				case 7:
				case 8:
				case 10:
				case 12:
					dayNum = 31
					break
				case 4:
				case 6:
				case 9:
				case 11:
					dayNum = 30
					break
				case 2:
					if ((year % 4 == 0 && year % 100 != 0) || year % 400 == 0) {
						dayNum = 29
					} else {
						dayNum = 28
					}
					break
			}
			for (d = 1; d <= dayNum; d++) {
				date.setMonth(m - 1, d)
				day = date.getDay()
				if (day == 0) {
					result.push(date.getFullYear() + '-' + (date.getMonth() + 1) + '-' + date.getDate())
				} else if (day == 6) {
					result.push(date.getFullYear() + '-' + (date.getMonth() + 1) + '-' + date.getDate())
				}
			}
		}
		return result
	}