Javascript 日期格式化 相關操作

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1.相關擴充函數

//---------------------------------------------------// 判斷閏年//---------------------------------------------------Date.prototype.isLeapYear = function(){return (0==this.getYear()%4&&((this.getYear()%100!=0)||(this.getYear()%400==0)));};//---------------------------------------------------// 日期格式化// 格式 YYYY/yyyy/YY/yy 表示年份// MM/M 月份// W/w 星期// dd/DD/d/D 日期// hh/HH/h/H 時間// mm/m 分鐘// ss/SS/s/S 秒//---------------------------------------------------Date.prototype.Format = function(formatStr){var str = formatStr;var Week = [‘日‘,‘一‘,‘二‘,‘三‘,‘四‘,‘五‘,‘六‘];str=str.replace(/yyyy|YYYY/,this.getFullYear());str=str.replace(/yy|YY/,(this.getYear() % 100)>9?(this.getYear() % 100).toString():‘0‘ + (this.getYear() % 100));str=str.replace(/MM/,(this.getMonth() + 1)>9?(this.getMonth() + 1).toString():‘0‘ + (this.getMonth() + 1));str=str.replace(/M/g,this.getMonth() + 1);str=str.replace(/w|W/g,Week[this.getDay()]);str=str.replace(/dd|DD/,this.getDate()>9?this.getDate().toString():‘0‘ + this.getDate());str=str.replace(/d|D/g,this.getDate());str=str.replace(/hh|HH/,this.getHours()>9?this.getHours().toString():‘0‘ + this.getHours());str=str.replace(/h|H/g,this.getHours());str=str.replace(/mm/,this.getMinutes()>9?this.getMinutes().toString():‘0‘ + this.getMinutes());str=str.replace(/m/g,this.getMinutes());str=str.replace(/ss|SS/,this.getSeconds()>9?this.getSeconds().toString():‘0‘ + this.getSeconds());str=str.replace(/s|S/g,this.getSeconds());return str;};//+---------------------------------------------------//| 求兩個時間的天數差 日期格式為 YYYY-MM-dd//+---------------------------------------------------function daysBetween(DateOne,DateTwo){var OneMonth = DateOne.substring(5,DateOne.lastIndexOf(‘-‘));var OneDay = DateOne.substring(DateOne.length,DateOne.lastIndexOf(‘-‘)+1);var OneYear = DateOne.substring(0,DateOne.indexOf(‘-‘));var TwoMonth = DateTwo.substring(5,DateTwo.lastIndexOf(‘-‘));var TwoDay = DateTwo.substring(DateTwo.length,DateTwo.lastIndexOf(‘-‘)+1);var TwoYear = DateTwo.substring(0,DateTwo.indexOf(‘-‘));var cha=((Date.parse(OneMonth+‘/‘+OneDay+‘/‘+OneYear)- Date.parse(TwoMonth+‘/‘+TwoDay+‘/‘+TwoYear))/86400000);return Math.abs(cha);}//+---------------------------------------------------//| 日期計算//+---------------------------------------------------Date.prototype.DateAdd = function(strInterval, number) {var dtTmp = this;switch (strInterval) {case ‘s‘ :return new Date(Date.parse(dtTmp.toGMTString()) + (1000 * number));case ‘n‘ :return new Date(Date.parse(dtTmp.toGMTString()) + (60000 * number));case ‘h‘ :return new Date(Date.parse(dtTmp.toGMTString()) + (3600000 * number));case ‘d‘ :return new Date(Date.parse(dtTmp.toGMTString()) + (86400000 * number));case ‘w‘ :return new Date(Date.parse(dtTmp.toGMTString()) + ((86400000 * 7) * number));//FIXME 以下兩種對跨年的增加有異常//case ‘q‘ :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number*3, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());//case ‘m‘ :return new Date(dtTmp.getFullYear(), (dtTmp.getMonth()) + Number, dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());case ‘y‘ :return new Date((dtTmp.getFullYear() + number), dtTmp.getMonth(), dtTmp.getDate(), dtTmp.getHours(), dtTmp.getMinutes(), dtTmp.getSeconds());}};//+---------------------------------------------------//| 比較日期差 dtEnd 格式為日期型或者 有效日期格式字串//+---------------------------------------------------Date.prototype.DateDiff = function(strInterval, dtEnd) {var dtStart = this;if (typeof dtEnd == ‘string‘ )//如果是字串轉換為日期型{dtEnd = StringToDate(dtEnd);}switch (strInterval) {case ‘s‘ :return parseInt((dtEnd - dtStart) / 1000);case ‘n‘ :return parseInt((dtEnd - dtStart) / 60000);case ‘h‘ :return parseInt((dtEnd - dtStart) / 3600000);case ‘d‘ :return parseInt((dtEnd - dtStart) / 86400000);case ‘w‘ :return parseInt((dtEnd - dtStart) / (86400000 * 7));case ‘m‘ :return (dtEnd.getMonth()+1)+((dtEnd.getFullYear()-dtStart.getFullYear())*12) - (dtStart.getMonth()+1);case ‘y‘ :return dtEnd.getFullYear() - dtStart.getFullYear();}};//+---------------------------------------------------//| 日期輸出字串，重載了系統的toString方法//+---------------------------------------------------Date.prototype.toString = function(showWeek){var myDate= this;var str = myDate.toLocaleDateString();if (showWeek){var Week = [‘日‘,‘一‘,‘二‘,‘三‘,‘四‘,‘五‘,‘六‘];str += ‘ 星期‘ + Week[myDate.getDay()];}return str;};

2.調用格式

//格式化日期var date=new Date();var res=date.Format("yyyy-MM-dd HH:mm:ss  星期W");console.info(res);var date1=new  Date();//增加2個星期var date2=date1.DateAdd(‘w‘,2);//求日期差var dif=daysBetween(date1.Format("yyyy-MM-dd"),date2.Format("yyyy-MM-dd"))console.info(dif);//比較日期差var dateDiff=date1.DateDiff(‘d‘,date2);console.info(dateDiff);//toStringconsole.info(date1.toString())//判斷是否是閏年console.info(date1.isLeapYear())

3.結果

2014-10-08 10:13:25  星期三14132014/10/8false

原：http://blog.csdn.net/whzhaochao/article/details/39890321

Javascript 日期格式化 相關操作