JavaScript实现字符串与日期的互相转换及日期的格式化

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




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