ja-date-utils
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JavaScript
let dateConfig = {
dateFormat: 'YYYY-MM-DD hh:mm:ss',// 默认返回的时间格式
dateAdd: 'YYYY-MM-DD', //时间加减返回的时间格式
};
const initDateConfig = (config)=>{
if (typeof (config) == 'string'){
dateConfig.dateFormat = config;
dateConfig.dateAdd = config;
} else if (typeof (config) == 'object'){
dateConfig = Object.assign(dateConfig, config);//合并配置
}
}
const toDate = (curStr)=> {//将字符串时间 || 时间戳 转化为时间类型。 未传值默认为当前时间
// curStr 为 "2019/06/04 01:59:59" 形式
let strTimeStamp = +curStr;
let timeDate;
if (curStr === '') {// 如果是空字符串则为当前时间
timeDate = new Date();
} else if (isNaN(strTimeStamp)) {//时间类型 如 "2019-08-10"
timeDate = new Date(curStr.replace(/-/g, "/"));
} else {//时间戳 如："1559295683340"
(""+strTimeStamp).length == 10 && (strTimeStamp*=1000);
timeDate = new Date(strTimeStamp);
}
if (timeDate.length === 12) {// 'Invalid Date'.length == 12 无效日期 相对于 timeDate=='Invalid Date' 性能提升一倍
return null;
} else {
return timeDate;
}
};
const dateFormat = (date, fmt)=> {//字符串转化任意格式时间, 未传值默认为当前时间
// 例: dateFormat('1559530562175', "YYYY-MM-DD hh:mm:ss.S 周W(w) t.T month月 第Q季度")
// 返回值: "2019-06-03 10:56:02.175 am.上午 周一(1) 六月 第2季度"
fmt = fmt || dateConfig.dateFormat;
let timeDate = toDate(date);
if (timeDate == null) return timeDate;
let week = { "0": '日', "1": '一', "2": '二', "3": '三', "4": '四', "5": '五', "6": '六' };//星期 -- 中文
let weekNum = { "0": 7, "1": 1, "2": 2, "3": 3, "4": 4, "5": 5, "6": 6 };//星期 -- 数字
let month = { "1": '一', "2": '二', "3": '三', "4": '四', "5": '五', "6": '六', "7": '七', "8": '八', "9": '九', "10": '十', "11": '十一', "12": '十二' };//月份 -- 中文
let result = fmt
.replace(/YYYY/, timeDate.getFullYear()) //年
.replace(/Y/, timeDate.getFullYear()) //年
.replace(/MM/, repair0(timeDate.getMonth() + 1)) //月份 -- 数字
.replace(/M/, timeDate.getMonth() + 1) //月份 -- 不补0
.replace(/month/, month[timeDate.getMonth() + 1]) //月份 -- 中文
.replace(/DD/, repair0(timeDate.getDate())) //日
.replace(/D/, timeDate.getDate()) //日 -- 不补0
.replace(/hh/, repair0(timeDate.getHours())) //小时
.replace(/h/, timeDate.getHours()) //小时 -- 不补0
.replace(/mm/, repair0(timeDate.getMinutes())) //分
.replace(/m/, timeDate.getMinutes()) //分 -- 不补0
.replace(/ss/, repair0(timeDate.getSeconds())) //秒
.replace(/s/, timeDate.getSeconds()) //秒 -- 不补0
.replace(/S/, timeDate.getMilliseconds()) //毫秒
.replace(/Q/, Math.floor((timeDate.getMonth() + 3) / 3)) //季度
.replace(/w/, weekNum[timeDate.getDay()]) //星期 -- 数字
.replace(/W/, week[timeDate.getDay()]) //星期 -- 中文
.replace(/t/, timeDate.getHours() < 12 ? 'am' : 'pm') //am: 上午, pm: 下午
.replace(/T/, timeDate.getHours() < 12 ? '上午' : '下午') //am: 上午, pm: 下午
function repair0(value) {//小于10 补0
if (value < 10) return '0' + value;
else return value;
}
return result;
};
const dateAdd = function (date, num, type, fmt) {//数量，要增减的单位，返回格式
// 例：dateAdd("1559530562175", 2,'DD', 'YYYY-MM-DD')
// 返回值: "2019-06-05"
type = type || 'DD';
fmt = fmt || dateConfig.dateAdd;
let timeDate = toDate(date);
if (timeDate == null) return timeDate;
num = +num;//如果是字符串，转成数字
if (type == 'ss') { //秒
timeDate.setSeconds(timeDate.getSeconds() + num);
} else if (type == 'mm') { //分
timeDate.setMinutes(timeDate.getMinutes() + num);
} else if (type == 'hh') { //小时
timeDate.setHours(timeDate.getHours() + num);
} else if (type == 'w') { //周
timeDate.setDate(timeDate.getDate() + (7 * num));
} else if (type == 'DD') { //天
timeDate.setDate(timeDate.getDate() + num);
} else if (type == 'MM') { //月
timeDate.setMonth(timeDate.getMonth() + num);
} else if (type == 'YYYY') { //年
timeDate.setYear(timeDate.getFullYear() + num);
}
return dateFormat(timeDate, fmt);
}
const dateDiff = function (parame) {// 计算时间差
let result = '', config = {}, timeDate, targetTime;
if (typeof (parame) == 'string') {
targetTime = toDate(parame); // 需要对比的时间
timeDate = new Date(); // 目标时间 默认当前时间
} else if (typeof (parame) == 'object') {
config = parame || {};
targetTime = toDate(config.date || new Date()); // 需要对比的时间
timeDate = toDate(config.dateTarget || new Date()); // 目标时间 默认当前时间
}
let second = 1000;
let minute = 1000 * 60; //把分，时，天，周，月，年 用毫秒表示
let hour = minute * 60;
let day = hour * 24;
let week = day * 7;
let month = day * 30;
let year = month * 12;
let diffValueOld = timeDate - targetTime;//时间差
let diffType = diffValueOld > 0 ? "前" : "后";
let diffValue = Math.abs(diffValueOld);//取绝对值
let seconC = diffType / second; //计算时间差的秒，分，时，天，周，月，年
let minC = diffValue / minute;
let hourC = diffValue / hour;
let dayC = diffValue / day;
let weekC = diffValue / week;
let monthC = diffValue / month;
let yearC = diffValue / year;
function isSameDay(type, timeDate, targetTime) {//是否同一天
let diff = 0;
if (type == 'today') {
diff = 0;
} else if (type == 'yesterday') {
diff = 24 * 3600 * 1000;
}
let today = new Date(timeDate.getFullYear(), timeDate.getMonth(), timeDate.getDate()).getTime(); //当前时间 00:00:00
let targetDay = new Date(targetTime.getFullYear(), targetTime.getMonth(), targetTime.getDate()).getTime(); //目标时间 00:00:000
return Math.abs(targetDay - today) == diff;
}
if (isSameDay("today", timeDate, targetTime)) {//今天
if (minC >= 1 && minC < 60) {
result = parseInt(minC) + "分钟" + diffType;
} else if (hourC >= 1 && hourC < 24) {
result = parseInt(hourC) + "小时" + diffType;
} else {
result = "刚刚";
}
} else if (isSameDay("yesterday", timeDate, targetTime)) {
result = diffValueOld > 0 ? "昨天" : "明天";
} else if (dayC >= 2 && dayC < 7) {
result = parseInt(dayC) + "天" + diffType;
} else if (weekC >= 1 && weekC < 30 / 7) {
result = parseInt(weekC) + "周" + diffType;
} else if (monthC >= 1 && monthC < 12) {
result = parseInt(monthC) + "月" + diffType;
} else if (yearC >= 1) {
result = parseInt(yearC) + "年" + diffType;
} else {
result = dateFormat(targetTime, config.dateFormat);
}
if (config.dateMaxValue) {//超过指定时长则直接显示时间
let condition = [config.dateMaxType == 'YYYY' && yearC > config.dateMaxValue,
config.dateMaxType == 'MM' && monthC > config.dateMaxValue,
config.dateMaxType == 'DD' && dayC > config.dateMaxValue,
config.dateMaxType == 'w' && weekC > config.dateMaxValue,
config.dateMaxType == 'hh' && hourC > config.dateMaxValue,
config.dateMaxType == 'mm' && minC > config.dateMaxValue,
config.dateMaxType == 'ss' && second > config.dateMaxValue,
]
for (let item of condition){
if (item) {
result = dateFormat(targetTime, config.dateFormat);
break;
};
}
}
return result;
};
const isToday = (date, dateTarget = new Date())=>{ // 是否今天
return dateFormat(date, 'YYYY-MM-DD') == dateFormat(dateTarget, 'YYYY-MM-DD');
}
const isInDate = (date, num = 1, type = 'DD', dateTarget = new Date())=>{ // 是否在时间范围内
let second = 1000;
let minute = 1000 * 60; //把分，时，天，周，月，年 用毫秒表示
let hour = minute * 60;
let day = hour * 24;
let week = day * 7;
let month = day * 30;
let year = month * 12;
let diffValueOld = toDate(dateTarget) - toDate(date);//时间差
if(diffValueOld<0){return false};
let diffValue = Math.abs(diffValueOld);//取绝对值
let seconC = diffValue / second; //计算时间差的秒，分，时，天，周，月，年
let minC = diffValue / minute;
let hourC = diffValue / hour;
let dayC = diffValue / day;
let weekC = diffValue / week;
let monthC = diffValue / month;
let yearC = diffValue / year;
let condition = [type == 'YYYY' && yearC <= num,
type == 'MM' && monthC <= num,
type == 'DD' && dayC <= num,
type == 'w' && weekC <= num,
type == 'hh' && hourC <= num,
type == 'mm' && minC <= num,
type == 'ss' && seconC <= num,
]
let flag = false;
for (let item of condition){
if (item) {
flag = true
break;
};
}
return flag;
}
module.exports = {
initDateConfig, // 初始化默认配置
dateFormat, // 格式化时间
dateAdd, // 时间增减
dateDiff, // 计算时间差
isInDate, // 是否在时间范围内
isToday, // 是否今天
}