Date将今天00:00 到 Now 做区间划分_date 当天时间区间-优快云博客

本文链接：https://blog.youkuaiyun.com/qq_26239917/article/details/103203794

<!DOCTYPE html>
<html>
	<head>
		<meta charset="utf-8">
		<title></title>
	</head>
	<body>
	</body>
	<script type="text/javascript">
		let date = new Date();
		let data = getTodayPeriodByHour()
		data = data.map(item => {
			item.xName = ''
			return item
		})
		data = getXName(data)
		console.log(data.slice(-6))

		function getTenDigits(numberValue) {
			return (numberValue < 10) ? "0" + numberValue : numberValue;
		}

		function getTodayPeriodByHour() {
			let arr = [];
			let date = new Date();
			let dateToMill = date.getTime()
			let dateStart = date.setHours(0, 0, 0, 0)
			step = 2 * 60 * 60 * 1000;
			while (dateStart <= dateToMill) {
				arr.push({
					from: dateStart,
					to: dateStart + step
				});
				dateStart += step;
			}
			return arr;
		}
		function getXName(result) {
			result = result.map(item => {
				item.xName = getDH(item.from, ':') + '-' + getDH(item.to, ':')
				return item
			})
			return result
		}
		function getMD(timeStamp, space) {
			return `${this.getTime(timeStamp, 1)}${space}${this.getTime(timeStamp, 2)}`;
		}
		function getYM(timeStamp, space) {
			return `${this.getTime(timeStamp, 0)}${space}${this.getTime(timeStamp, 1)}`;
		}
		function getDH(timeStamp, space) {
			return `${this.getTime(timeStamp, 3)}${space}${this.getTime(timeStamp, 4)}`;
		}

		function getTime(second, getDateType) {
			var date = new Date(second);
			if (getDateType == 0) {
				return date.getFullYear();
			} else if (getDateType == 1) {
				if ((date.getMonth() + 1) <= 9) {
					return "0" + (date.getMonth() + 1);
				} else {
					return date.getMonth() + 1;
				}
			} else if (getDateType == 2) {
				if (date.getDate() <= 9) {
					return "0" + date.getDate();
				} else {
					return date.getDate();
				}
			} else if (getDateType == 3) {
				if (date.getHours() <= 9) {
					return "0" + date.getHours();
				} else {
					return date.getHours();
				}
			} else if (getDateType == 4) {
				if (date.getMinutes() <= 9) {
					return "0" + date.getMinutes();
				} else {
					return date.getMinutes();
				}
			} else if (getDateType == 5) {
				return date.getSeconds();
			} else {
				alert("输入时间格式有误!");
				return;
			}
		}
	</script>
</html>