这篇文章主要介绍了JavaScript实现字符串与日期的互相转换及日期的格式化的方法,这里格式化使用的是正则表达式来替换日期后进行格式化,需要的朋友可以参考下

字符串转日期、日期转字符串// 2014-02-25

/**

* 字符串转时间(yyyy-MM-dd HH:mm:ss)

* result (分钟)

*/

stringToDate : function(fDate){

var fullDate = fDate.split("-");

return new Date(fullDate[0], fullDate[1]-1, fullDate[2], 0, 0, 0);

}

/**

* 格式化日期

* @param date 日期

* @param format 格式化样式,例如yyyy-MM-dd HH:mm:ss E

* @return 格式化后的金额

*/

formatDate : function (date, format) {

var v = "";

if (typeof date == "string" || typeof date != "object") {

return;

}

var year = date.getFullYear();

var month = date.getMonth()+1;

var day = date.getDate();

var hour = date.getHours();

var minute = date.getMinutes();

var second = date.getSeconds();

var weekDay = date.getDay();

var ms = date.getMilliseconds();

var weekDayString = "";

if (weekDay == 1) {

weekDayString = "星期一";

} else if (weekDay == 2) {

weekDayString = "星期二";

} else if (weekDay == 3) {

weekDayString = "星期三";

} else if (weekDay == 4) {

weekDayString = "星期四";

} else if (weekDay == 5) {

weekDayString = "星期五";

} else if (weekDay == 6) {

weekDayString = "星期六";

} else if (weekDay == 7) {

weekDayString = "星期日";

}

v = format;

//Year

v = v.replace(/yyyy/g, year);

v = v.replace(/YYYY/g, year);

v = v.replace(/yy/g, (year+"").substring(2,4));

v = v.replace(/YY/g, (year+"").substring(2,4));

//Month

var monthStr = ("0"+month);

v = v.replace(/MM/g, monthStr.substring(monthStr.length-2));

//Day

var dayStr = ("0"+day);

v = v.replace(/dd/g, dayStr.substring(dayStr.length-2));

//hour

var hourStr = ("0"+hour);

v = v.replace(/HH/g, hourStr.substring(hourStr.length-2));

v = v.replace(/hh/g, hourStr.substring(hourStr.length-2));

//minute

var minuteStr = ("0"+minute);

v = v.replace(/mm/g, minuteStr.substring(minuteStr.length-2));

//Millisecond

v = v.replace(/sss/g, ms);

v = v.replace(/SSS/g, ms);

//second

var secondStr = ("0"+second);

v = v.replace(/ss/g, secondStr.substring(secondStr.length-2));

v = v.replace(/SS/g, secondStr.substring(secondStr.length-2));

//weekDay

v = v.replace(/E/g, weekDayString);

return v;

}

// dateValue=2014-02-28

var cDate = _STAGE.stringToDate(dateValue);

cDate.setDate(cDate.getDate()+1);

currentDate = jAnXin.util.formatDate(cDate, "yyyy-MM-dd");

console.log(currentDate ); // 2014-03-01

正则替换日期并格式化日期

转数字型：ar ttDate = "2013年12月20日 14:20:20";

ttDate = ttDate.replace(/[^0-9]/mg, '').match(/.{8}/);

alert(ttDate);

结果：20131220

转日期型：var ttDate = "2013年12月20日 14:20:20";

ttDate = ttDate.match(/\d{4}.\d{1,2}.\d{1,2}/mg).toString();

ttDate = ttDate.replace(/[^0-9]/mg, '-');

alert(ttDate);

结果：2013-12-20

超级正则替换：var ttDate = "2013年12月20日 14:20:20";

ttDate = ttDate.replace(/(\d{4}).(\d{1,2}).(\d{1,2}).+/mg, '$1-$2-$3');

alert(ttDate);

结果：2013-12-20