yangtao-js/src/date/formatDate.js

A JavaScript utility library , JavaScript 实用工具库

/**格式化日期
 * @method formatDate
 * @param {Number} time 要传入的时间戳
 * @param {String} format 要传入的时间格式参数 在方法中查看 例：YYYY年MM月DD日 ，for now：几分钟前
 * @returns
 */
const formatDate = function(time, format) {
	time = time.toString();
	if (time.length != 10 && time.length != 13) return "时间格式不正确！";
	if (!format) return "缺少时间格式参数";
	let date = new Date(time.length == 10 ? +time * 1000 : +time),
		year = date.getFullYear(),
		month =
		date.getMonth() + 1 < 10 ?
		`0${date.getMonth() + 1}` :
		date.getMonth() + 1,
		day = date.getDate() < 10 ? `0${date.getDate()}` : date.getDate(),
		hour = date.getHours() < 10 ? `0${date.getHours()}` : date.getHours(),
		minute =
		date.getMinutes() < 10 ? `0${date.getMinutes()}` : date.getMinutes(),
		second =
		date.getSeconds() < 10 ? `0${date.getSeconds()}` : date.getSeconds(),
		now = new Date(),
		result = "";
	switch (format) {
		case "Year":
			result = year;
			break;
		case "Month":
			result = month;
			break;
		case "Date":
			result = day;
			break;
		case "Hour":
			result = hour;
			break;
		case "minute":
			result = minute;
			break;
		case "second":
			result = second;
			break;
		case "YYYY.MM.DD":
			result = `${year}.${month}.${day}`;
			break;
		case "YYYY-MM-DD":
			result = `${year}-${month}-${day}`;
			break;
		case "YYYY-MM-DD HH:MM":
			result = `${year}-${month}-${day} ${hour}:${minute}`;
			break;
		case "YYYY-MM-DD HH:MM:SS":
			result = `${year}-${month}-${day} ${hour}:${minute}:${second}`;
			break;
		case "YYYY年MM月DD日":
			result = `${year}年${month}月${day}日`;
			break;
		case "YYYY年MM月DD日 HH:MM":
			result = `${year}年${month}月${day}日 ${hour}:${minute}`;
			break;
		case "YYYY年MM月DD日 HH:MM:SS":
			result = `${year}年${month}月${day}日 ${hour}:${minute}:${second}`;
			break;
		case "YYYY/MM/DD":
			result = `${year}/${month}/${day}`;
			break;
		case "YYYY/MM/DD HH:MM":
			result = `${year}/${month}/${day} ${hour}:${minute}`;
			break;
		case "YYYY/MM/DD HH:MM:SS":
			result = `${year}/${month}/${day} ${hour}:${minute}:${second}`;
			break;
		case "HH:MM":
			result = `${hour}:${minute}`;
			break;
		case "HH:MM:SS":
			result = `${hour}:${minute}:${second}`;
			break;
		case "for now":
			let leftTime = (now.getTime() - date.getTime()) / 1000,
				pastSecond = Math.floor(leftTime % 60),
				pastMinute = Math.floor((leftTime / 60) % 60),
				pastHour = Math.floor((leftTime / 3600) % 24),
				pastDay = Math.floor((leftTime / 86400) % 30),
				pastMonth = Math.floor((leftTime / 2629744) % 12),
				pastYear = Math.floor(leftTime / 31556926);
			if (pastYear > 0) {
				result = `${pastYear}年前`;
				break;
			} else if (pastMonth > 0) {
				result = `${pastMonth}月前`;
				break;
			} else if (pastDay > 0) {
				result = `${pastDay}天前`;
				break;
			} else if (pastHour > 0) {
				result = `${pastHour}小时前`;
				break;
			} else if (pastMinute > 0) {
				result = `${pastMinute}分钟前`;
				break;
			} else {
				result = "刚刚";
				break;
			}
	}
	return result;
};

/** 用法
const timestamp = Date.now()
const result = formatDate(timestamp,'for now')
console.log(result) //=> 2分钟前
 */

export default formatDate;