Signed-off-by: liuboyan <632697560@qq.com>

时间格式

components/uni-dateformat/date-format.js

@@ -0,0 +1,173 @@
+// yyyy-MM-dd hh:mm:ss.SSS 所有支持的类型
+function pad(str, length = 2) {
+	str += ''
+	while (str.length < length) {
+		str = '0' + str
+	}
+	return str.slice(-length)
+}
+
+const parser = {
+	yyyy: (dateObj) => {
+		return pad(dateObj.year, 4)
+	},
+	yy: (dateObj) => {
+		return pad(dateObj.year)
+	},
+	MM: (dateObj) => {
+		return pad(dateObj.month)
+	},
+	M: (dateObj) => {
+		return dateObj.month
+	},
+	dd: (dateObj) => {
+		return pad(dateObj.day)
+	},
+	d: (dateObj) => {
+		return dateObj.day
+	},
+	hh: (dateObj) => {
+		return pad(dateObj.hour)
+	},
+	h: (dateObj) => {
+		return dateObj.hour
+	},
+	mm: (dateObj) => {
+		return pad(dateObj.minute)
+	},
+	m: (dateObj) => {
+		return dateObj.minute
+	},
+	ss: (dateObj) => {
+		return pad(dateObj.second)
+	},
+	s: (dateObj) => {
+		return dateObj.second
+	},
+	SSS: (dateObj) => {
+		return pad(dateObj.millisecond, 3)
+	},
+	S: (dateObj) => {
+		return dateObj.millisecond
+	},
+}
+
+export function formatDate(date, format = 'yyyy/MM/dd hh:mm:ss') {
+	date = date instanceof Date ? date : new Date(date)
+	const dateObj = {
+		year: date.getFullYear(),
+		month: date.getMonth() + 1,
+		day: date.getDate(),
+		hour: date.getHours(),
+		minute: date.getMinutes(),
+		second: date.getSeconds(),
+		millisecond: date.getMilliseconds()
+	}
+	const tokenRegExp = /yyyy|yy|MM|M|dd|d|hh|h|mm|m|ss|s|SSS|SS|S/
+	let flag = true
+	let result = format
+	while (flag) {
+		flag = false
+		result = result.replace(tokenRegExp, function(matched) {
+			flag = true
+			return parser[matched](dateObj)
+		})
+	}
+	return result
+}
+
+export function friendlyDate(time, {
+	locale = 'zh',
+	threshold = [60000, 3600000],
+	format = 'yyyy/MM/dd hh:mm:ss'
+}) {
+
+	const localeText = {
+		zh: {
+			year: '年',
+			month: '月',
+			day: '天',
+			hour: '小时',
+			minute: '分钟',
+			second: '秒',
+			ago: '前',
+			later: '后',
+			justNow: '刚刚',
+			soon: '马上',
+			template: '{num}{unit}{suffix}'
+		},
+		en: {
+			year: 'year',
+			month: 'month',
+			day: 'day',
+			hour: 'hour',
+			minute: 'minute',
+			second: 'second',
+			ago: 'ago',
+			later: 'later',
+			justNow: 'just now',
+			soon: 'soon',
+			template: '{num} {unit} {suffix}'
+		}
+	}
+	const text = localeText[locale] || localeText.zh
+	let date = new Date(time)
+	let ms = date.getTime() - Date.now()
+	let absMs = Math.abs(ms)
+	if (absMs < threshold[0]) {
+		return ms < 0 ? text.justNow : text.soon
+	}
+	if (absMs >= threshold[1]) {
+		return formatDate(date, format)
+	}
+	let num
+	let unit
+	let suffix = text.later
+	if (ms < 0) {
+		suffix = text.ago
+		ms = -ms
+	}
+	const seconds = Math.floor((ms) / 1000)
+	const minutes = Math.floor(seconds / 60)
+	const hours = Math.floor(minutes / 60)
+	const days = Math.floor(hours / 24)
+	const months = Math.floor(days / 30)
+	const years = Math.floor(months / 12)
+	switch (true) {
+		case years > 0:
+			num = years
+			unit = text.year
+			break
+		case months > 0:
+			num = months
+			unit = text.month
+			break
+		case days > 0:
+			num = days
+			unit = text.day
+			break
+		case hours > 0:
+			num = hours
+			unit = text.hour
+			break
+		case minutes > 0:
+			num = minutes
+			unit = text.minute
+			break
+		default:
+			num = seconds
+			unit = text.second
+			break
+	}
+
+	if (locale === 'en') {
+		if (num === 1) {
+			num = 'a'
+		} else {
+			unit += 's'
+		}
+	}
+
+	return text.template.replace(/{\s*num\s*}/g, num + '').replace(/{\s*unit\s*}/g, unit).replace(/{\s*suffix\s*}/g,
+		suffix)
+}

components/uni-dateformat/uni-dateformat.vue

@@ -0,0 +1,90 @@
+<template>
+	<text>{{dateShow}}</text>
+</template>
+
+<script>
+	/**
+	 * Dateformat 日期格式化
+	 * @description 日期格式化组件
+	 * @tutorial https://ext.dcloud.net.cn/plugin?id=xxx
+	 * @property {Object|String|Number} date 日期对象/日期字符串/时间戳
+	 * @property {String} locale 格式化使用的语言
+	 * 	@value zh 中文
+	 * 	@value en 英文
+	 * @property {Array} threshold 应用不同类型格式化的阈值
+	 * @property {String} format 输出日期字符串时的格式
+	 */
+	import {
+		friendlyDate
+	} from './date-format.js'
+	export default {
+		name: 'uniDateformat',
+		props: {
+			date: {
+				type: [Object, String, Number],
+				default () {
+					return Date.now()
+				}
+			},
+			locale: {
+				type: String,
+				default: 'zh',
+			},
+			threshold: {
+				type: Array,
+				default () {
+					return [0, 0]
+				}
+			},
+			format: {
+				type: String,
+				default: 'yyyy/MM/dd hh:mm:ss'
+			},
+			// refreshRate使用不当可能导致性能问题，谨慎使用
+			refreshRate: {
+				type: [Number, String],
+				default: 0
+			}
+		},
+		data() {
+			return {
+				refreshMark: 0
+			}
+		},
+		computed: {
+			dateShow() {
+				this.refreshMark
+				return friendlyDate(this.date, {
+					locale: this.locale,
+					threshold: this.threshold,
+					format: this.format
+				})
+			}
+		},
+		watch: {
+			refreshRate: {
+				handler() {
+					this.setAutoRefresh()
+				},
+				immediate: true
+			}
+		},
+		methods: {
+			refresh() {
+				this.refreshMark++
+			},
+			setAutoRefresh() {
+				clearInterval(this.refreshInterval)
+				if (this.refreshRate) {
+					this.refreshInterval = setInterval(() => {
+						this.refresh()
+					}, parseInt(this.refreshRate))
+				}
+			}
+		}
+	}
+</script>
+
+<style>
+
+</style>