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@@ -0,0 +1,319 @@
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+/**
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+ * 日期管理类
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+ */
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+// padStart 的 polyfill,因为某些机型或情况,还无法支持es7的padStart,比如电脑版的微信小程序
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+// 所以这里做一个兼容polyfill的兼容处理
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+if (!String.prototype.padStart) {
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+ // 为了方便表示这里 fillString 用了ES6 的默认参数,不影响理解
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+ String.prototype.padStart = function(maxLength, fillString = ' ') {
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+ if (Object.prototype.toString.call(fillString) !== '[object String]') {
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+ throw new TypeError(
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+ 'fillString must be String'
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+ )
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+ }
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+ const str = this
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+ // 返回 String(str) 这里是为了使返回的值是字符串字面量,在控制台中更符合直觉
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+ if (str.length >= maxLength) return String(str)
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+
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+ const fillLength = maxLength - str.length
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+ let times = Math.ceil(fillLength / fillString.length)
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+ while (times >>= 1) {
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+ fillString += fillString
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+ if (times === 1) {
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+ fillString += fillString
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+ }
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+ }
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+ return fillString.slice(0, fillLength) + str
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+ }
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+}
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+
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+export class DateManager {
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+ constructor() {}
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+
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+ /**
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+ * 获取时间戳
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+ */
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+ getTimestamp = (time, type = 's') => {
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+ const now = time ? new Date(time) : new Date();
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+ let timeTamp = Date.parse(now);
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+ return (type === 'ms') ? timeTamp : timeTamp / 1000;
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+ }
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+
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+ /**
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+ * 格式化时间
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+ * 其他更多是格式化有如下:
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+ * yyyy:mm:dd|yyyy:mm|yyyy年mm月dd日|yyyy年mm月dd日 hh时MM分等,可自定义组合
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+ *
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+ * 来源:uview 2.0
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+ */
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+ format = (dateTime = null, formatStr = 'yyyy-mm-dd') => {
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+ let date
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+ // 若传入时间为假值,则取当前时间
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+ if (!dateTime) {
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+ date = new Date()
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+ }
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+ // 若为unix秒时间戳,则转为毫秒时间戳(逻辑有点奇怪,但不敢改,以保证历史兼容)
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+ else if (/^\d{10}$/.test(dateTime?.toString().trim())) {
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+ date = new Date(dateTime * 1000)
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+ }
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+ // 若用户传入字符串格式时间戳,new Date无法解析,需做兼容
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+ else if (typeof dateTime === 'string' && /^\d+$/.test(dateTime.trim())) {
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+ date = new Date(Number(dateTime))
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+ }
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+ // 处理平台性差异,在Safari/Webkit中,new Date仅支持/作为分割符的字符串时间
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+ // 处理 '2022-07-10 01:02:03',跳过 '2022-07-10T01:02:03'
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+ else if (typeof dateTime === 'string' && dateTime.includes('-') && !dateTime.includes('T')) {
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+ date = new Date(dateTime.replace(/-/g, '/'))
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+ }
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+ // 其他都认为符合 RFC 2822 规范
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+ else {
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+ date = new Date(dateTime)
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+ }
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+
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+ const timeSource = {
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+ 'y': date.getFullYear().toString(), // 年
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+ 'm': (date.getMonth() + 1).toString().padStart(2, '0'), // 月
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+ 'd': date.getDate().toString().padStart(2, '0'), // 日
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+ 'h': date.getHours().toString().padStart(2, '0'), // 时
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+ 'M': date.getMinutes().toString().padStart(2, '0'), // 分
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+ 's': date.getSeconds().toString().padStart(2, '0') // 秒
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+ // 有其他格式化字符需求可以继续添加,必须转化成字符串
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+ }
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+
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+ for (const key in timeSource) {
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+ const [ret] = new RegExp(`${key}+`).exec(formatStr) || []
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+ if (ret) {
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+ // 年可能只需展示两位
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+ const beginIndex = key === 'y' && ret.length === 2 ? 2 : 0
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+ formatStr = formatStr.replace(ret, timeSource[key].slice(beginIndex))
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+ }
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+ }
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+
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+ return formatStr
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+ }
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+
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+ /**
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+ * @description 时间戳转为多久之前
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+ * @param {String|Number} timestamp 时间戳
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+ * @param {String|Boolean} format
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+ * 格式化规则如果为时间格式字符串,超出一定时间范围,返回固定的时间格式;
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+ * 如果为布尔值false,无论什么时间,都返回多久以前的格式
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+ * @returns {string} 转化后的内容
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+ *
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+ * 来源:uview 2.0
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+ */
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+ from = (timestamp = null, format = 'yyyy-mm-dd') => {
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+ if (timestamp == null) timestamp = Number(new Date())
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+ timestamp = parseInt(timestamp)
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+ // 判断用户输入的时间戳是秒还是毫秒,一般前端js获取的时间戳是毫秒(13位),后端传过来的为秒(10位)
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+ if (timestamp.toString().length == 10) timestamp *= 1000
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+ let timer = (new Date()).getTime() - timestamp
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+ timer = parseInt(timer / 1000)
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+ // 如果小于5分钟,则返回"刚刚",其他以此类推
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+ let tips = ''
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+ switch (true) {
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+ case timer < 300:
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+ tips = '刚刚'
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+ break
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+ case timer >= 300 && timer < 3600:
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+ tips = `${parseInt(timer / 60)}分钟前`
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+ break
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+ case timer >= 3600 && timer < 86400:
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+ tips = `${parseInt(timer / 3600)}小时前`
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+ break
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+ case timer >= 86400 && timer < 2592000:
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+ tips = `${parseInt(timer / 86400)}天前`
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+ break
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+ default:
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+ // 如果format为false,则无论什么时间戳,都显示xx之前
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+ if (format === false) {
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+ if (timer >= 2592000 && timer < 365 * 86400) {
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+ tips = `${parseInt(timer / (86400 * 30))}个月前`
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+ } else {
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+ tips = `${parseInt(timer / (86400 * 365))}年前`
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+ }
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+ } else {
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+ tips = this.format(timestamp, format)
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+ }
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+ }
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+ return tips
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+ }
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+
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+ /**
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+ * @description 日期的月或日补零操作
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+ * @param {String} value 需要补零的值
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+ *
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+ * 来源:uview 2.0
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+ */
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+ padZero = (value) => {
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+ return `00${value}`.slice(-2)
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+ }
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+
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+ /**
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+ * 获取昨天
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+ */
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+ yesterday = () => {
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+ let day = new Date();
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+ day.setTime(day.getTime() - 24 * 60 * 60 * 1000);
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+ let yesterday = day.getFullYear() + "-" + this.padZero((day.getMonth() + 1)) + "-" + this.padZero(day.getDate());
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+ return yesterday;
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+ }
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+
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+ /**
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+ * 周日期
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+ */
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+ week = (operator = 1) => {
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+ let now = new Date()
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+ let nowTime = now.getTime()
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+ // getDay()返回0-6,其中0表示周日,需特殊处理
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+ let day = now.getDay() > 0 ? now.getDay() : 7 // 表示当前是周几
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+ let oneDayTime = 24 * 60 * 60 * 1000 // 一天的总ms
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+ // 周一时间戳
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+ let mondayTime = nowTime - (day - 1) * oneDayTime
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+ // 周日时间戳
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+ let sundayTime = nowTime + (7 - day) * oneDayTime
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+ if (operator < 0) {
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+ mondayTime = mondayTime - oneDayTime * (Math.abs(operator) * 7);
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+ sundayTime = sundayTime - oneDayTime * (Math.abs(operator) * 7);
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+ } else if (operator > 1) {
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+ mondayTime = mondayTime + oneDayTime * ((operator - 1) * 7);
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+ sundayTime = sundayTime + oneDayTime * ((operator - 1) * 7);
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+ }
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+ let mondayDate = this.format(mondayTime);
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+ let sundayDate = this.format(sundayTime);
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+ return [mondayDate, sundayDate];
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+ }
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+
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+ // 月
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+ month = (operator = 1) => {
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+ let date = new Date();
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+ if (operator < 0) {
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+ let operatorValue = Math.abs(operator);
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+ date.setMonth(date.getMonth() - operatorValue);
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+ } else if (operator > 1) {
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+ date.setMonth(date.getMonth() - 1 + operator);
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+ }
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+ let year = date.getFullYear();
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+ let month = date.getMonth();
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+ // 日期
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+ let monthDate = new Date(year, month + 1, 0);
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+ // 日期的天数
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+ let monthDay = monthDate.getDate();
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+ // 年份
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+ let newYear = monthDate.getFullYear();
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+ // 月份
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+ let newMonth = monthDate.getMonth() + 1;
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+ newMonth = newMonth < 10 ? "0" + newMonth : newMonth;
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+ // 开始日期
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+ let startDate = newYear + "-" + newMonth + "-01"
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+ // 结束日期
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+ let endDate = newYear + "-" + newMonth + "-" + monthDay;
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+ return [startDate, endDate];
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+ }
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+
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+ /**
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+ * 验证日期格式
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+ */
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+ isDate = (value, separator = "-") => {
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+ if (value == "") return false;
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+ if (typeof value !== 'string') return false;
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+ let valueArr = value.split(separator);
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+ if (valueArr.length != 3) return false;
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+ let intYear = parseInt(valueArr[0]);
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+ let intMonth = parseInt(valueArr[1]);
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+ let intDay = parseInt(valueArr[2]);
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+ if (isNaN(intYear) || isNaN(intMonth) || isNaN(intDay)) return false;
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+ if (intMonth > 12 || intMonth < 1) return false;
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+ if (intDay < 1 || intDay > 31) return false;
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+ if ((intMonth == 4 || intMonth == 6 || intMonth == 9 || intMonth == 11) && (intDay > 30)) return false;
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+ if (intMonth == 2) {
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+ if (intDay > 29) return false;
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+ if ((((intYear % 100 == 0) && (intYear % 400 != 0)) || (intYear % 4 != 0)) && (intDay > 28)) return false;
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+ }
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+ return true;
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+ }
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+
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+ /**
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+ * 两个日期之间的天数
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+ * @param startDate 开始日期
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+ * @param endDate 结束日期日期
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+ */
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+ betweenDays = (startDate, endDate) => {
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+ let strSeparator = "-"; //日期分隔符
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+ let oDate1;
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+ let oDate2;
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+ let iDays;
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+ oDate1 = startDate.split(strSeparator);
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+ oDate2 = endDate.split(strSeparator);
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+ let strDateS = new Date(oDate1[0], oDate1[1] - 1, oDate1[2]);
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+ let strDateE = new Date(oDate2[0], oDate2[1] - 1, oDate2[2]);
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+ iDays = parseInt(Math.abs(strDateS - strDateE) / 1000 / 60 / 60 / 24) //把相差的毫秒数转换为天数
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+ return iDays;
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+ }
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+
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+ /**
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+ * 某个月的天数
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+ * @param value 月份,格式:2023-05
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+ */
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+ monthDays = (value) => {
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+ let monthArr = value.split("-");
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+ let year = parseInt(monthArr[0]);
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+ let month = parseInt(monthArr[1], 10);
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+ let d = new Date(year, month, 0);
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+ return d.getDate();
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+ }
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+
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+ /**
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+ * 两个日期之间的所有日期
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+ */
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+ betweenDates = (startDate, endDate) => {
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+ let result = [];
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+ let beginDay = startDate.split("-");
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+ let endDay = endDate.split("-");
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+ let diffDay = new Date();
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+ let dateList = new Array;
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+ let i = 0;
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+ diffDay.setDate(beginDay[2]);
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+ diffDay.setMonth(beginDay[1] - 1);
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+ diffDay.setFullYear(beginDay[0]);
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+ result.push(startDate);
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+ while (i == 0) {
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+ let countDay = diffDay.getTime() + 24 * 60 * 60 * 1000;
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+ diffDay.setTime(countDay);
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+ dateList[2] = diffDay.getDate();
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+ dateList[1] = diffDay.getMonth() + 1;
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+ dateList[0] = diffDay.getFullYear();
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+ if (String(dateList[1]).length == 1) {
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+ dateList[1] = "0" + dateList[1]
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+ };
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+ if (String(dateList[2]).length == 1) {
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+ dateList[2] = "0" + dateList[2]
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+ };
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+ result.push(dateList[0] + "-" + dateList[1] + "-" + dateList[2]);
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+ if (dateList[0] == endDay[0] && dateList[1] == endDay[1] && dateList[2] == endDay[2]) {
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+ i = 1;
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+ }
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+ };
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+ return result;
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+ }
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+
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+ /**
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+ * 加多少天后的日期
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+ */
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+ addDay = (day) => {
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+ let date = new Date();
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+ date.setTime(date.getTime() + 24 * 60 * 60 * 1000 * day);
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+ let dateFormat = date.getFullYear() + "-" + this.padZero((date.getMonth() + 1)) + "-" + this.padZero(date.getDate());
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+ return dateFormat;
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+ }
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+
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+ /**
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+ * 减多少天后的日期
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+ */
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+ reduceDay = (day) => {
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+ let date = new Date();
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+ date.setTime(date.getTime() - 24 * 60 * 60 * 1000 * day);
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+ let dateFormat = date.getFullYear() + "-" + this.padZero((date.getMonth() + 1)) + "-" + this.padZero(date.getDate());
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+ return dateFormat;
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+ }
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+}
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