JS Object-oriented

Often encountered the effect of the page activity countdown, So wrote a JS countdown method, pulled out, directly quoted Common.js file can be.

Common.js file:

varCountdown = {    " Now":NewDate (),"Lefttime": function (t) {//T parameter format: 2015/2/11 10:08:51        varDT =NewDate (t); varnow = This. Now; vardistime = DT-Now ; if(Distime <=0) {            return; }        varDays = parseint (Distime/( +*3600* -)); varLeftday = parseint (distime% ( +*3600* -)); varHours = parseint (Leftday/( +*3600)); varLefthour = parseint (leftday% ( +*3600)); varminutes = parseint (Lefthour/( +* -)); varLeftminute = parseint (lefthour% ( +* -)); varseconds = parseint (Leftminute/( +)); varShowday = (Days <Ten) ? ('0'+days.tostring ()): Days.tostring (); varShowhour = (Hours <Ten) ? ('0'+hours.tostring ()): Hours.tostring (); varShowminute = (Minutes <Ten) ? ('0'+minutes.tostring ()): Minutes.tostring (); varShowsecond = (Seconds <Ten) ? ('0'+seconds.tostring ()): Seconds.tostring (); returnShowday +"|"+ Showhour +"|"+ Showminute +"|"+Showsecond; }};

Pages to use:

<script src="@Url. Content ("~/common.js")"Type="Text/javascript"></script>"Text/javascript">varTime ="2015/3/11 10:01:15"; varValue =Countdown.lefttime (time); varTimes = Value.split ('|'); Alert (times[0] +"days"+ times[1] +"when"+ times[2] +"points"+ times[3] +"seconds");</script>

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Additional JS object-oriented knowledge: http://www.iteye.com/topic/434462

 //  1th syntax   function Circle (r) { this . R = R;      } circle.pi  = 3.14159  ; Circle.prototype.area  = function () { ret Urn  Circle.pi * this . R * this  .R;  var  C = new  Circle (1.0  );   Alert (C.area ()); 

 //  2nd syntax  var  Circle = function () { var  ob         j = new   Object (); Obj.                  PI  = 3.14159  ; Obj.area  = function (r) { return this .         PI * r * R;       return   obj;  var  C = new   Circle ();  Alert (C.area ( 1.0 )); 

 //  3rd syntax  var  Circle = new   Object ();      Circle.pi  = 3.14159  ; Circle.area  = function (r) { return  this .      PI * r * R;  } alert (Circle.area ( 1.0 )); 

 //  4th syntax  var  circle={  " pi  : 3.14159  ,   area   " :function (R) { return  
     
      this 
     .              PI * r * R;      }      };  Alert (Circle.area ( 1.0 )); 

    // The 5th kind  of notation    var New Function ("this. PI = 3.14159;this.area = function (r) {return r*r*this. PI;} " );            Alert ((new Circle ()). Area (1.0));  

Especially the last two kinds, often see.

JS Object-oriented