js時間格式化和時間功能例項程式碼

對於時間的格式化或者其他一些時間相關的操作在編碼中是非常常見的，如果能夠將這些功能事先封裝好，用的時候隨時呼叫那就非常方便了，下面就是一段這樣的程式碼，希望能夠對需要的朋友帶來一定的幫助。

程式碼如下:

[JavaScript] 純文字檢視 複製程式碼
<script type="text/javascript">
//--------------------------------------------------- 
// 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 
//+--------------------------------------------------- 
Date.prototype.daysBetween=function(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，過載了系統的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 
//+--------------------------------------------------- 
Date.prototype.IsValidDate=function(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 
//+--------------------------------------------------- 
Date.prototype.CheckDateTime=function(str){ 
  var reg = /^(\d+)-(\d{ 1,2 })-(\d{ 1,2 }) (\d{ 1,2 })<img src="static/image/smiley/default/sad.gif" smilieid="2" border="0" alt="">\d{ 1,2 })<img src="static/image/smiley/default/sad.gif" smilieid="2" border="0" alt="">\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; 
} 
 
//+--------------------------------------------------- 
//| 把日期分割成陣列 
//+--------------------------------------------------- 
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 
//| 引數 interval 表示資料型別 
//| 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; 
} 
 
//+--------------------------------------------------- 
//| 字串轉成日期型別 
//| 格式 MM/dd/YYYY MM-dd-YYYY YYYY/MM/dd YYYY-MM-dd 
//+--------------------------------------------------- 
Date.prototype.StringToDate=function(DateStr) 
{ 
  var converted = Date.parse(DateStr); 
  var myDate = new Date(converted); 
  if(isNaN(myDate)) 
  { 
    var arys= DateStr.split('-'); 
    myDate = new Date(arys[0],--arys[1],arys[2]); 
  } 
  return myDate; 
} 
</script>

以上程式碼是時間操作程式碼的封裝。