Js获取当前日期时间及其它操作
2020-11-15 03:06
标签：tar c t string art sp get int cti type har Js获取当前日期时间及其它操作 var myDate = new Date(); myDate.getYear(); //获取当前年份(2位) myDate.getFullYear(); //获取完整的年份(4位,1970-????) myDate.getMonth();
//获取当前月份(0-11,0代表1月) myDate.getDate(); //获取当前日(1-31) myDate.getDay();
//获取当前星期X(0-6,0代表星期天) myDate.getTime();
//获取当前时间(从1970.1.1开始的毫秒数) myDate.getHours(); //获取当前小时数(0-23) myDate.getMinutes(); //获取当前分钟数(0-59) myDate.getSeconds(); //获取当前秒数(0-59) myDate.getMilliseconds(); //获取当前毫秒数(0-999) myDate.toLocaleDateString(); //获取当前日期 var mytime=myDate.toLocaleTimeString(); //获取当前时间 myDate.toLocaleString( );
//获取日期与时间 日期时间脚本库方法列表 Date.prototype.isLeapYear 判断闰年 Date.prototype.Format 日期格式化
Date.prototype.DateAdd 日期计算 Date.prototype.DateDiff 比较日期差
Date.prototype.toString 日期转字符串 Date.prototype.toArray 日期分割为数组
Date.prototype.DatePart 取日期的部分信息 Date.prototype.MaxDayOfDate 取日期所在月的最大天数
Date.prototype.WeekNumOfYear 判断日期所在年的第几周 StringToDate 字符串转日期型 IsValidDate
验证日期有效性 CheckDateTime 完整日期时间检查 daysBetween 日期天数差 js代码： //--------------------------------------------------- // 判断闰年
//---------------------------------------------------
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 时间 // mm/m 分钟 // 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; }
//+--------------------------------------------------- //| 求两个时间的天数差 日期格式为
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); }
//+--------------------------------------------------- //| 日期计算
//+---------------------------------------------------
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());
} }
//+--------------------------------------------------- //| 比较日期差 dtEnd
格式为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‘ )//如果是字符串转换为日期型 {
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();
} }
//+--------------------------------------------------- //|
日期输出字符串，重载了系统的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; }
//+--------------------------------------------------- //| 日期合法性验证
//| 格式为：YYYY-MM-DD或YYYY/MM/DD
//+--------------------------------------------------- function
IsValidDate(DateStr) { var
sDate=DateStr.replace(/(^\s+|\s+$)/g,‘‘); //去两边空格;
if(sDate==‘‘) return true;
//如果格式满足YYYY-(/)MM-(/)DD或YYYY-(/)M-(/)DD或YYYY-(/)M-(/)D或YYYY-(/)MM-(/)D就替换为‘‘
//数据库中，合法日期可以是:YYYY-MM/DD(2003-3/21),数据库会自动转换为YYYY-MM-DD格式
var s = sDate.replace(/[\d]{ 4,4 }[\-/]{ 1 }[\d]{ 1,2 }[\-/]{
1 }[\d]{ 1,2 }/g,‘‘); if (s==‘‘)
//说明格式满足YYYY-MM-DD或YYYY-M-DD或YYYY-M-D或YYYY-MM-D
{ var t=new
Date(sDate.replace(/\-/g,‘/‘));
var ar =
sDate.split(/[-/:]/);
if(ar[0] != t.getYear() || ar[1] != t.getMonth()+1 || ar[2] !=
t.getDate())
{
//alert(‘错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。‘);
return
false; }
} else
{
//alert(‘错误的日期格式！格式为：YYYY-MM-DD或YYYY/MM/DD。注意闰年。‘);
return false;
} return true;
}
//+--------------------------------------------------- //| 日期时间检查
//| 格式为：YYYY-MM-DD HH:MM:SS
//+--------------------------------------------------- function
CheckDateTime(str) { var reg = /^(\d+)-(\d{
1,2 })-(\d{ 1,2 }) (\d{ 1,2 }):(\d{ 1,2 }):(\d{ 1,2 })$/;
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; }
//+--------------------------------------------------- //| 把日期分割成数组
//+---------------------------------------------------
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;
} //+--------------------------------------------------- //|
取得日期数据信息 //| 参数 interval 表示数据类型 //| y 年 m月 d日 w星期 ww周 h时 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; }
//+--------------------------------------------------- //|
取得当前日期所在月的最大天数
//+---------------------------------------------------
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; }
//+--------------------------------------------------- //|
取得当前日期所在周是一年中的第几周
//+---------------------------------------------------
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(‘ \n‘);
document.write(‘myDate = Datue(‘‘+month+‘-‘+day+‘-‘+year+‘‘)
\n‘); document.write(‘result = DatePart(‘ww‘, myDate)
\n‘); document.write(‘ \n‘);
return result; }
//+--------------------------------------------------- //|
字符串转成日期类型 //| 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; } 若要显示:当前日期加时间(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();
//时 var mm =
now.getMinutes(); //分
var clock = year + "-";
if(month Js获取当前日期时间及其它操作,搜素材,soscw.com Js获取当前日期时间及其它操作 标签：tar c t string art sp get int cti type har 原文地址：http://www.cnblogs.com/itjeff/p/3695778.html