Prototype ¬ Detail

author: MattWalker [+], Submitted: 12.03.03 3a

/*
 * Date.getFormatedString(format)
 */
Date.prototype.getFormatedString = function(format){
 var keys = { y:"getFullYear",
   m:"getMonth",
   d:"getDate",
   h:"getHours",
   n:"getMinutes",
   s:"getSeconds",
   i:"getMilliseconds"
 }
 var str = "";
 var ci, meth;
 for(var i=0; i<format.length; i++){
  ci = format.charAt(i);
  if(keys[ci] != undefined){
   meth = keys[ci];
   if(meth == "getMonth"){
    var val = (this[meth]()+1);
    str += (val<10) ? "0"+val : val;
   }else{
   var val = (this[meth]());
    str += (val<10) ? "0"+val : val;
   }
  }else{
   str += ci;
  }
 }
 return str;
}

//---------------------------------------------------

/*
 * Date.parseDate(dt, format)
 * Originally by Peter Hall - www.peterjoel.com
 */
Date.prototype.parseDate = function(dt, format){
 var keys = { y:"setFullYear",
   m:"setMonth",
   d:"setDate",
   h:"setHours",
   n:"setMinutes",
   s:"setSeconds",
   i:"setMilliseconds"
 }
 var num, ci, meth;
 var commands = new Array();
 for(var i=0,j=0,k; i<format.length; i++,j++){
  ci = format.charAt(i);
  if(keys[ci] != undefined){
   for(k=j; k<=dt.length && !isNaN(dt.charAt(k)); k++);
   if(k > dt.length)return;
   num = parseInt(dt.substring(j,k));
   meth = keys[ci];
   if(meth == "setMonth"){
    commands[meth] = num-1;
   }else{
    commands[meth] = num
   }
   j = k-1;
  }
 }
 for (var i in keys) {
  if (commands[keys[i]] != undefined) {
   this[keys[i]](commands[keys[i]]);
  }
 }
}

usage

/*
 * Date.getFormatedString(format)
 */
Returns a string representing a date in the supplied format
Writen as a companion to Date.parseDate below (originally by Peter Hall)

*Params:
format - a string showing the format

*Returns
a string representing a the date in that format.

*Examples:
//iso format
Code:
var now = new Date();
trace(now.getFormatedString("y-m-d h:n:s"));
Output:
2003-12-03 10:34:03

//UK date format
Code:
var now = new Date();
trace(now.getFormatedString("d/m/y"));
Output:
03/12/2003

//---------------------------------------------------

/*
 * Date.parseDate(dt, format)
 * Originally by Peter Hall - www.peterjoel.com
 */
This prototype was originally written by Peter Hall and posted at http://chattyfig.figleaf.com/ezmlm/ezmlm-cgi?1:mss:57776
This is a modified version to fix a problem when setting the day before the month.

*Parmas:
dt - The date string to parse ("03/12/2003")
format = A string representing the format the string is in ("d/m/y")

*Returns:
nothing - it sets the date of the date object

*Examples:
//iso format
Code:
var now = new Date();
now.parseDate("2003-12-03 10:34:03","y-m-d h:n:s");
trace(now);
Output:
Wed Dec 3 10:34:03 GMT+0000 2003

//UK date format
Code:
var now = new Date();
now.parseDate("01/12/2003","d/m/y");
trace(now);
Output:
Mon Dec 1 10:53:44 GMT+0000 2003