JavaScript中擷取時間的函數集_javascript技巧

下面給大家介紹下js擷取時間的函數集。

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

擷取JavaScript 的時間使用內建的Date函數完成

var mydate = new Date();mydate.getYear(); //擷取當前年份(2位)mydate.getFullYear(); //擷取完整的年份(4位,1970-????)mydate.getMonth(); //擷取當前月份(0-11,0代表1月)mydate.getDate(); //擷取當前日(1-31)mydate.getDay(); //擷取當前星期X(0-6,0代表星期天)mydate.getTime(); //擷取目前時間(從1970.1.1開始的毫秒數)mydate.getHours(); //擷取當前小時數(0-23)mydate.getMinutes(); //擷取當前分鐘數(0-59)mydate.getSeconds(); //擷取當前秒數(0-59)mydate.getMilliseconds(); //擷取當前毫秒數(0-999)mydate.toLocaleDateString(); //擷取當前日期var mytime=mydate.toLocaleTimeString(); //擷取目前時間mydate.toLocaleString( ); //擷取日期與時間

日期時間指令碼庫方法列表

Date.prototype.isLeapYear 判斷閏年Date.prototype.Format 日期格式化Date.prototype.DateAdd 日期計算Date.prototype.DateDiff 比較日期差Date.prototype.toString 日期轉字串Date.prototype.toArray 日期分割為數組Date.prototype.DatePart 取日期的部分資訊Date.prototype.MaxDayOfDate 取日期所在月的最大天數Date.prototype.WeekNumOfYear 判斷日期所在年的第幾周StringToDate 字串轉日期型IsValidDate 驗證日期有效性CheckDateTime 完整日期時間檢查daysBetween 日期天數差

//---------------------------------------------------// 判斷閏年//---------------------------------------------------Date.prototype.isLeapYear = function(){return (0==this.getYear()%4&&((this.getYear()0!=0)||(this.getYear()@0==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;}//+---------------------------------------------------//| 求兩個時間的天數差 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 有效日期格式字串//+---------------------------------------------------Date.prototype.DateDiff = function(strInterval, dtEnd) {var dtStart = this;if (typeof dtEnd == 'string' )//如果是字串轉換為日期型{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();}}//+---------------------------------------------------//| 日期輸出字串，重載了系統的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+$)/g,''); //去兩邊空格;if(sDate=='') return true;//如果格式滿足YYYY-(/)MM-(/)DD或YYYY-(/)M-(/)DD或YYYY-(/)M-(/)D或YYYY-(/)MM-(/)D就替換為''//資料庫中，合法日期可以是:YYYY-MM/DD(2003-3/21),資料庫會自動轉換為YYYY-MM-DD格式var s = sDate.replace(/[\d]{ 4,4 }[\-/]{ 1 }[\d]{ 1,2 }[\-/]{ 1 }[\d]{ 1,2 }/g,'');if (s=='') //說明格式滿足YYYY-MM-DD或YYYY-M-DD或YYYY-M-D或YYYY-MM-D{var t=new Date(sDate.replace(/\-/g,'/'));var ar = sDate.split(/[-/:]/);if(ar[0] != t.getYear() || ar[1] != t.getMonth()+1 || ar[2] != t.getDate()){//alert('錯誤的日期格式！格式為：YYYY-MM-DD或YYYY/MM/DD。注意閏年。');return false;}}else{//alert('錯誤的日期格式！格式為：YYYY-MM-DD或YYYY/MM/DD。注意閏年。');return false;}return true;}//+---------------------------------------------------//| 日期時間檢查//| 格式為：YYYY-MM-DD HH:MM:SS//+---------------------------------------------------function CheckDateTime(str){var reg = /^(\d+)-(\d{ 1,2 })-(\d{ 1,2 }) (\d{ 1,2 }):(\d{ 1,2 }):(\d{ 1,2 })$/;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;}//+---------------------------------------------------//| 取得日期資料資訊//| 參數 interval 表示資料類型//| y 年 m月 d日 w星期 ww周 h時 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;}//+---------------------------------------------------//| 取得當前日期所在月的最大天數//+---------------------------------------------------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 = DateValue(''+month+'-'+day+'-'+year+'') \n');document.write('result = DatePart('ww', myDate) \n');document.write(' \n');return result;}//+---------------------------------------------------//| 字串轉成日期類型//| 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;}