122 lines
3.6 KiB
JavaScript
122 lines
3.6 KiB
JavaScript
// 星期格式转换 0-6：周日到周六
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function weekFormat(e, prefix = "周") {
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switch (e) {
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case 0:
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return prefix + "日"
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break;
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case 1:
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return prefix + "一"
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break;
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case 2:
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return prefix + "二"
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break;
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case 3:
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return prefix + "三"
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break;
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case 4:
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return prefix + "四"
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break;
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case 5:
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return prefix + "五"
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break;
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case 6:
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return prefix + "六"
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break;
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default:
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return ""
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break;
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}
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}
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// 转换今日的时辰格式
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function todayTimeFormat(e) {
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if (e >= 0 && e < 7) {
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return "凌晨"
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} else if (e >= 7 && e < 11) {
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return "上午"
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} else if (e >= 11 && e < 13) {
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return "中午"
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} else if (e >= 13 && e < 18) {
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return "下午"
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} else if (e >= 18 && e < 24) {
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return "晚上"
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} else {
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return ""
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}
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}
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// 是否显示周几
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function isShowWeekDay(sub, weekDay) {
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const currentWeekDay = new Date().getDay()
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const dayTime = 1000 * 60 * 60 * 24
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// 1.当前时间与消息时间相差必须大于2天小于7天
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// 2.当前时间距离本周一相差必须大于2天且小于当前距离周一的天数
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// 3.消息时间不可能是0-周日，因为周日没有给后面时间留空间，不会走这里的逻辑，而是走今天的逻辑
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if (sub >= dayTime * 2 && weekDay !== 0 && sub <= dayTime * currentWeekDay) {
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return true
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} else {
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return false
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}
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}
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// 仿微信时间显示格式转换 @time 时间戳毫秒
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function wechatTimeFormat(time) {
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const today = new Date().getTime()
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// 当前时间减去获取到的时间
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const sub = today - time
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const day = 1000 * 60 * 60 * 24
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const timeDate = new Date(time)
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const currentYear = new Date().getFullYear()
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const getYear = new Date(time).getFullYear()
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const HHmm = `${formatTime2("hh", timeDate)}:${formatTime2("mm", timeDate)}`
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const showWeekDay = isShowWeekDay(sub, timeDate.getDay())
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const currentDay = new Date().getDate()
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const getDay = new Date(time).getDate()
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const subDay = currentDay - getDay
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if (currentYear > getYear) {
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return `${formatTime2("yyyy-MM-dd", timeDate)} ${formatTime2("hh:mm", timeDate)}`
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// 上午下午
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return `${formatTime2("yyyy年MM月dd日", timeDate)} ${todayTimeFormat(timeDate.getHours())} ${formatTime2("hh:mm", timeDate)}`
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} else if (showWeekDay) {
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return `${weekFormat(timeDate.getDay())} ${HHmm}`
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//} else if (sub > day && sub < day * 2) {
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} else if (subDay === 1) {
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return `昨天 ${HHmm}`
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} else if (sub <= day) {
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return HHmm
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} else {
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return `${formatTime2("MM-dd", timeDate)} ${formatTime2("hh:mm", timeDate)}`
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// 上午下午
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return `${formatTime2("MM月dd日", timeDate)} ${todayTimeFormat(timeDate.getHours())} ${formatTime2("hh:mm", timeDate)}`
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}
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}
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function formatTime2(fmt, timestamp) {
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var date = new Date(timestamp) // 兼容safari
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var o = {
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'M+': date.getMonth() + 1,
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'd+': date.getDate(),
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'h+': date.getHours(),
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'm+': date.getMinutes(),
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's+': date.getSeconds(),
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'q+': Math.floor((date.getMonth() + 3) / 3),
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'S': date.getMilliseconds()
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}
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if (/(y+)/.test(fmt)) {
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fmt = fmt.replace(RegExp.$1, (date.getFullYear() + '').substr(4 - RegExp.$1.length))
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}
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for (var k in o) {
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if (new RegExp('(' + k + ')').test(fmt)) {
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fmt = fmt.replace(RegExp.$1, (RegExp.$1.length === 1) ? (o[k]) : (('00' + o[k]).substr(('' + o[k]).length)))
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}
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}
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return fmt
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}
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module.exports = {
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weekFormat,
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todayTimeFormat,
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isShowWeekDay,
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wechatTimeFormat
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}
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