var Moment = function (date) {
var date;
if (date)
this.date = new Date(date);
else
this.date = new Date();
return this;
};
/**
* 对Date的扩展，将 Date 转化为指定格式的String
* 月(M)、日(d)、12小时(h)、24小时(H)、分(m)、秒(s)、周(E)、季度(q) 可以用 1-2 个占位符
* 年(y)可以用 1-4 个占位符，毫秒(S)只能用 1 个占位符(是 1-3 位的数字)
* eg:
* "yyyy-MM-dd hh:mm:ss.S" ==> 2006-07-02 08:09:04.423
* "yyyy-M-d h:m:s.S" ==> 2006-7-2 8:9:4.18
* "yyyy-MM-dd E HH:mm:ss" ==> 2009-03-10 二 20:09:04
* "yyyy-MM-dd EE hh:mm:ss" ==> 2009-03-10 周二 08:09:04
* "yyyy-MM-dd EEE hh:mm:ss" ==> 2009-03-10 星期二 08:09:04
*/
Moment.prototype.format = function (format) {
var date = this.date;
/*
var r= /^(\d{4})-(\d{1,2})-(\d{1,2})$/; //正则表达式 匹配出生日期(简单匹配)
r.exec('1985-10-15');
s1=RegExp.$1;s2=RegExp.$2;s3=RegExp.$3;//结果为1985 10 15
*/
if (typeof date === 'string')
date = this.parse(date);
var o = {
"M+": date.getMonth() + 1, //月份
"(d+|D+)": date.getDate(), //日
"(h+|H+)": date.getHours(), //小时
"m+": date.getMinutes(), //分
"s+": date.getSeconds(), //秒
"q+": Math.floor((date.getMonth() + 3) / 3), //季度
"S": date.getMilliseconds() //毫秒
};
var week = {
"0": "/u65e5",
"1": "/u4e00",
"2": "/u4e8c",
"3": "/u4e09",
"4": "/u56db",
"5": "/u4e94",
"6": "/u516d"
};
if (/(y+|Y+)/.test(format))
format = format.replace(RegExp.$1, (date.getFullYear() + "").substr(4 - RegExp.$1.length));
if (/(E+)/.test(format))
format = format.replace(RegExp.$1, ((RegExp.$1.length > 1) ? (RegExp.$1.length > 2 ? "/u661f/u671f" : "/u5468") : "") + week[date.getDay() + ""]);
for (var k in o) {
if (new RegExp("(" + k + ")").test(format))
format = format.replace(RegExp.$1, (RegExp.$1.length == 1) ? (o[k]) : (("00" + o[k]).substr(("" + o[k]).length)));
}
return format;
}
Moment.prototype.parse = function () {
return this.date;
}
/**
* 计算两个日期差差
* return day
*/
Moment.prototype.differ = function (date) {
var time1 = this.date.getTime();
if (typeof date === 'string')
date = new Date(date);
var time1 = this.date.getTime();
var time2 = date.getTime();
var differ = Math.ceil((time1 - time2) / (1000 * 3600 * 24));//除不尽时,向上取整
return differ;
}
Moment.prototype.add = function (num, optionType) {
var date = this.date;
if ('day' === optionType) {
date.setDate(date.getDate() + num);
}
if ('month' === optionType) {
date.setMonth(date.getMonth() + num);
}
if ('year' === optionType) {
date.setFullYear(date.getFullYear() + num);
}
this.date = date;
return this;
}
Moment.prototype.before = function (date) {
return this.date.getTime() < new Date(date).getTime()
}
Moment.prototype.after = function (date) {
return this.date.getTime() > date.getTime()
}
module.exports = function (date) {
return new Moment(date);
}
