Function set for obtaining time in JavaScript, which is obtained by javascript

Function set for obtaining time in JavaScript, which is obtained by javascript

Next we will introduce the function set for js to get time.

$(function(){var mydate = new Date();var t=mydate.toLocaleString();$("#time").text(t);$("#time").load("Untitled-1.html"); });

Use the built-in Date function to get the JavaScript time.

Var mydate = new Date (); mydate. getYear (); // obtain the current year (2 digits) mydate. getFullYear (); // obtain the complete year (4 digits, 1970 -????) Mydate. getMonth (); // obtain the current month (0-11, 0 represents January) mydate. getDate (); // obtain the current day (1-31) mydate. getDay (); // obtain the current day X (0-6, 0 represents Sunday) mydate. getTime (); // obtain the current time (milliseconds starting from 1970.1.1) mydate. getHours (); // obtain the current hour (0-23) mydate. getMinutes (); // get the current number of minutes (0-59) mydate. getSeconds (); // obtain the current number of seconds (0-59) mydate. getMilliseconds (); // get the current number of milliseconds (0-999) mydate. toLocaleDateString (); // obtain the current date var mytime = mydate. toLocaleTimeString (); // obtain the current time mydate. toLocaleString (); // obtain the date and time

Date and Time script library method list

Date. prototype. isLeapYear determines the Date of the leap year. prototype. format Date. prototype. dateAdd Date calculation Date. prototype. dateDiff compares the Date difference. prototype. toString Date to string Date. prototype. toArray Date is split into array Date. prototype. datePart obtains part of the Date information. prototype. maxDayOfDate is the maximum number of days in the month where the Date is located. prototype. weekNumOfYear judge the week of the year where the date is located StringToDate string to date type IsValidDate verify date validity CheckDateTime full date time check daysBetween date day difference

// ----------------------------------------------------- // Determine a leap year // --------------------------------------------------- Date. prototype. isLeapYear = function () {return (0 = this. getYear () % 4 & (this. getYear () 0! = 0) | (this. getYear () @ 0 = 0 )));} // ------------------------------------------------- // format YYYY/yyyy/YY indicates the year // MM/M month // W/w weeks // dd/d/D date // hh/HH/h/H time // mm/m minutes // ss/SS/s/S seconds // --------------------------------------------------------- Date. prototype. format = function (formatStr) {var str = formatStr; var Week = ['day', 'yi', '2', '3', '4', '5 ', '6']; str = str. replace (/yyyy | YYYY/, this. getFullYear (); str = s Tr. 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;} // + --------------------------------------------------- // | returns the date format of the two days difference: YYYY-MM-dd // + interval function daysBetween (DateOne, dateTwo) {var OneMonth = DateOne. substring (5, DateOne. lastIndexOf ('-'); var OneDay = DateOne. substring (DateOne. length, DateOne. l AstIndexOf ('-') + 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 );} // + --------------------------------------------------- // | Date calculation // + ------------------------------------------------------- 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 * Nu Mber); 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. g EtHours (), dtTmp. getMinutes (), dtTmp. getSeconds (); case 'y': return new Date (dtTmp. getFullYear () + Number), dtTmp. getMonth (), dtTmp. getDate (), dtTmp. getHours (), dtTmp. getMinutes (), dtTmp. getSeconds () ;}/// + --------------------------------------------------- // | compare the dtEnd format with the Date format or the valid Date format string // + invalid Date. prototype. dateDiff = function (strInterval, dtEnd) {Var dtStart = this; if (typeof dtEnd = 'string') // if the string is converted to the date type {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 () ;}/// + ----------------------------------------------------- // | Date output string, reload the system's toString method // + 1_date. prototype. toString = function (showWeek) {var myDate = this; var str = myDate. toLocaleDateStr Ing (); if (showWeek) {var Week = ['day', 'yi', '2', '3', '4', '5 ', '6']; str + = 'Week' + Week [myDate. getDay ()];} return str;} // + --------------------------------------------------- // | date validity verification // | format: YYYY-MM-DD or YYYY/MM/DD // + ----------------------------------------------------- function IsValidDate (DateStr) {var sDate = DateStr. replace (/(^ \ s + | \ s + $)/g, ''); // remove spaces on both sides; if (sDate ='') return true; // if the format is YYYY-(/) MM-(/) DD Or YYYY -( /) M-(/) DD Or YYYY-(/) M-(/) D or YYYY-(/) MM -(/) D is replaced with ''// database, the valid date can be: YYYY-MM/DD (2003-3/21), the database will be automatically converted to the YYYY-MM-DD format var s = sDate. replace (/[\ d] {4, 4} [\-/] {1} [\ d] {1} [\-/] {1} [\ d] {1, 2} /g, ''); if (s ='') // The description format meets the YYYY-MM-DD or YYYY-M-DD or YYYY-M-D or 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 ('incorrect date format! Format: YYYY-MM-DD or YYYY/MM/DD. Pay attention to the leap year. '); Return false ;}} else {// alert (' incorrect date format! Format: YYYY-MM-DD or YYYY/MM/DD. Pay attention to the leap year. '); Return false;} return true;} // + --------------------------------------------------- // | Date and Time check // | format: YYYY-MM-DD HH: MM: SS // + ----------------------------------------------------- function CheckDateTime (str) {var reg =/^ (\ d +)-(\ d {1, 2})-(\ d {1 }) (\ 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. getFull Year ()! = 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;} // + ----------------------------------------------------- // | splits the Date into an array // + seasonal 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] = m YDate. getSeconds (); return myArray ;} // + ------------------------------------------------- // | get date data // | the interval parameter indicates the data type. // | y, m, D, w, ww, week, h, n minutes, s, s/+ --------------------------------------------------- Date. prototype. datePart = function (interval) {var myDate = this; var partStr = ''; var Week = ['day', 'day', 'two', '3 ', '4', '5', '6']; 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;} // + ----------------------------------------------------- // | obtains the most recent month of the current date. Large number of days // + ----------------------------------------------------- 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 ;} // + --------------------------------------------------- // | the week in which the current date is obtained is the week in the year. // + ---------- ----------------------------------------- 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 = DateValue (''+ month + '-' + day + '-' + year +'') \ n'); document. write ('result = DatePart ('ww ', myDate) \ n'); document. write ('\ n'); return result;} // + --- Convert // | string to date type // | format: MM/dd/yyyy mm-dd-YYYY/MM/dd YYYY-MM-dd // + convert 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 ;}