本文實(shí)例為大家分享了javascript時(shí)間操作的使用常見(jiàn)場(chǎng)景，供大家參考，具體內(nèi)容如下
var myDate = new Date();
myDate.getYear(); //獲取當(dāng)前年份(2位)
myDate.getFullYear(); //獲取完整的年份(4位,1970-????)
myDate.getMonth(); //獲取當(dāng)前月份(0-11,0代表1月)
myDate.getDate(); //獲取當(dāng)前日(1-31)
myDate.getDay(); //獲取當(dāng)前星期X(0-6,0代表星期天)
myDate.getTime(); //獲取當(dāng)前時(shí)間(從1970.1.1開(kāi)始的毫秒數(shù))
myDate.getHours(); //獲取當(dāng)前小時(shí)數(shù)(0-23)
myDate.getMinutes(); //獲取當(dāng)前分鐘數(shù)(0-59)
myDate.getSeconds(); //獲取當(dāng)前秒數(shù)(0-59)
myDate.getMilliseconds(); //獲取當(dāng)前毫秒數(shù)(0-999)
myDate.toLocaleDateString(); //獲取當(dāng)前日期
var mytime=myDate.toLocaleTimeString(); //獲取當(dāng)前時(shí)間
myDate.toLocaleString( ); //獲取日期與時(shí)間
日期時(shí)間腳本庫(kù)方法列表
Date.prototype.isLeapYear 判斷閏年
Date.prototype.Format 日期格式化
Date.prototype.DateAdd 日期計(jì)算
Date.prototype.DateDiff 比較日期差
Date.prototype.toString 日期轉(zhuǎn)字符串
Date.prototype.toArray 日期分割為數(shù)組
Date.prototype.DatePart 取日期的部分信息
Date.prototype.MaxDayOfDate 取日期所在月的最大天數(shù)
Date.prototype.WeekNumOfYear 判斷日期所在年的第幾周
StringToDate 字符串轉(zhuǎn)日期型
IsValidDate 驗(yàn)證日期有效性
CheckDateTime 完整日期時(shí)間檢查
daysBetween 日期天數(shù)差
javascript代碼塊
//—————————————————
// 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(shí)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()>9?this.getMonth().toString():'0' + this.getMonth());
str=str.replace(/M/g,this.getMonth());
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(gè)時(shí)間的天數(shù)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(jì)算
//+—————————————————
Date.prototype.DateAdd = function(strInterval, Number) {
var dtTmp = this;
switch (strInterval) {
case ‘s' :return new Date(Date.parse(dtTmp) + (1000 * Number));
case ‘n' :return new Date(Date.parse(dtTmp) + (60000 * Number));
case ‘h' :return new Date(Date.parse(dtTmp) + (3600000 * Number));
case ‘d' :return new Date(Date.parse(dtTmp) + (86400000 * Number));
case ‘w' :return new Date(Date.parse(dtTmp) + ((86400000 * 7) * Number));
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符串
//+—————————————————
Date.prototype.DateDiff = function(strInterval, dtEnd) {
var dtStart = this;
if (typeof dtEnd == ‘string' )//如果是字符串轉(zhuǎn)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();
}
}
//+—————————————————
//| 日期輸出字符串，重載了系統(tǒng)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;
}
//+—————————————————
//| 日期合法性驗(yàn)證
//| 格式為：YYYY-MM-DD或YYYY/MM/DD
//+—————————————————
function IsValidDate(DateStr)
{
var sDate=DateStr.replace(/(^\s+|\s+$)/g,”); //去兩邊空格;
if(sDate==”) return true;
//如果格式滿(mǎn)足YYYY-(/)MM-(/)DD或YYYY-(/)M-(/)DD或YYYY-(/)M-(/)D或YYYY-(/)MM-(/)D就替換為”
//數(shù)據(jù)庫(kù)中，合法日期可以是:YYYY-MM/DD(2003-3/21),數(shù)據(jù)庫(kù)會(huì)自動(dòng)轉(zhuǎn)換為YYYY-MM-DD格式
var s = sDate.replace(/[\d]{ 4,4 }[-/]{ 1 }[\d]{ 1,2 }[-/]{ 1 }[\d]{ 1,2 }/g,”);
if (s==”) //說(shuō)明格式滿(mǎn)足YYYY-MM-DD或YYYY-M-DD或YYYY-M-D或YYYY-MM-D
{
var t=new Date(sDate.replace(/-/g,'/'));
var ar = sDate.split(/[-/:]/);
if(ar[0] != t.getYear() || ar[1] != t.getMonth()+1 || ar[2] != t.getDate())
{
//alert(‘錯(cuò)誤的日期格式！格式為：YYYY-MM-DD或YYYY/MM/DD。注意閏年。');
return false;
}
}
else
{
//alert(‘錯(cuò)誤的日期格式！格式為：YYYY-MM-DD或YYYY/MM/DD。注意閏年。');
return false;
}
return true;
}
//+—————————————————
//| 日期時(shí)間檢查
//| 格式為：YYYY-MM-DD HH:MM:SS
//+—————————————————
function CheckDateTime(str)
{
var reg = /^(\d+)-(\d{ 1,2 })-(\d{ 1,2 }) (\d{ 1,2 }):(\d{ 1,2 }):(\d{ 1,2 })$/;
var r = str.match(reg);
if(r==null)return false;
r[2]=r[2]-1;
var d= new Date(r[1],r[2],r[3],r[4],r[5],r[6]);
if(d.getFullYear()!=r[1])return false;
if(d.getMonth()!=r[2])return false;
if(d.getDate()!=r[3])return false;
if(d.getHours()!=r[4])return false;
if(d.getMinutes()!=r[5])return false;
if(d.getSeconds()!=r[6])return false;
return true;
}
//+—————————————————
//| 把日期分割成數(shù)組
//+—————————————————
Date.prototype.toArray = function()
{
var myDate = this;
var myArray = Array();
myArray[0] = myDate.getFullYear();
myArray[1] = myDate.getMonth();
myArray[2] = myDate.getDate();
myArray[3] = myDate.getHours();
myArray[4] = myDate.getMinutes();
myArray[5] = myDate.getSeconds();
return myArray;
}
//+—————————————————
//| 取得日期數(shù)據(jù)信息
//| 參數(shù) interval 表示數(shù)據(jù)類(lèi)型
//| y 年 m月 d日 w星期 ww周 h時(shí) n分 s秒
//+—————————————————
Date.prototype.DatePart = function(interval)
{
var myDate = this;
var partStr=”;
var Week = [‘日','一','二','三','四','五','六'];
switch (interval)
{
case ‘y' :partStr = myDate.getFullYear();break;
case ‘m' :partStr = myDate.getMonth()+1;break;
case ‘d' :partStr = myDate.getDate();break;
case ‘w' :partStr = Week[myDate.getDay()];break;
case ‘ww' :partStr = myDate.WeekNumOfYear();break;
case ‘h' :partStr = myDate.getHours();break;
case ‘n' :partStr = myDate.getMinutes();break;
case ‘s' :partStr = myDate.getSeconds();break;
}
return partStr;
}
//+—————————————————
//| 取得當(dāng)前日期所在月的最大天數(shù)
//+—————————————————
Date.prototype.MaxDayOfDate = function()
{
var myDate = this;
var ary = myDate.toArray();
var date1 = (new Date(ary[0],ary[1]+1,1));
var date2 = date1.dateAdd(1,'m',1);
var result = dateDiff(date1.Format(‘yyyy-MM-dd'),date2.Format(‘yyyy-MM-dd'));
return result;
}
//+—————————————————
//| 取得當(dāng)前日期所在周是一年中的第幾周
//+—————————————————
Date.prototype.WeekNumOfYear = function()
{
var myDate = this;
var ary = myDate.toArray();
var year = ary[0];
var month = ary[1]+1;
var day = ary[2];
document.write(‘< script language=VBScript> \n');
document.write(‘myDate = Datue(”+month+'-‘+day+'-‘+year+”) \n');
document.write(‘result = DatePart(‘ww', myDate) \n');
document.write(' \n');
return result;
}
//+—————————————————
//| 字符串轉(zhuǎn)成日期類(lèi)型
//| 格式 MM/dd/YYYY MM-dd-YYYY YYYY/MM/dd YYYY-MM-dd
//+—————————————————
function StringToDate(DateStr)
{
var converted = Date.parse(DateStr);
var myDate = new Date(converted);
if (isNaN(myDate))
{
//var delimCahar = DateStr.indexOf('/')!=-1?'/':'-';
var arys= DateStr.split('-');
myDate = new Date(arys[0],--arys[1],arys[2]);
}
return myDate;
}
若要顯示:當(dāng)前日期加時(shí)間(如:2009-06-12 12:00)
function CurentTime()
{
var now = new Date();
var year = now.getFullYear(); //年
var month = now.getMonth() + 1; //月
var day = now.getDate(); //日
var hh = now.getHours(); //時(shí)
var mm = now.getMinutes(); //分
var clock = year + "-";
if(month < 10)
clock += "0";
clock += month + "-";
if(day < 10)
clock += "0";
clock += day + " ";
if(hh < 10)
clock += "0";
clock += hh + ":";
if (mm < 10) clock += '0';
clock += mm;
return(clock);
}
希望本文所述對(duì)大家學(xué)習(xí)javascript程序設(shè)計(jì)有所幫助。