/**
Returns the number of milliseconds between this date and date
@param {Date} date (optional) Defaults to now
- @return {Number} The diff in milliseconds
+ @param {String} interval (optional) Default Date.MILLI, A valid date interval enum value (eg. Date.DAY)
+ @return {Number} The diff in milliseconds or units of interval
@member Date getElapsed
*/
-Date.prototype.getElapsed = function(date) {
- return Math.abs((date || new Date()).getTime()-this.getTime());
+Date.prototype.getElapsed = function(date, interval)
+{
+ date = date || new Date();
+ var ret = Math.abs(date.getTime()-this.getTime());
+ switch (interval) {
+
+ case Date.SECOND:
+ return Math.floor(ret / (1000));
+ case Date.MINUTE:
+ return Math.floor(ret / (1000*60));
+ case Date.HOUR:
+ return Math.floor(ret / (1000*60*60));
+ case Date.DAY:
+ return Math.floor(ret / (1000*60*60*24));
+ case Date.MONTH: // this does not give exact number...??
+ return ((date.format("Y") - this.format("Y")) * 12) + (date.format("m") - this.format("m"));
+ case Date.YEAR: // this does not give exact number...??
+ return (date.format("Y") - this.format("Y"));
+
+ case Date.MILLI:
+ default:
+ return ret;
+ }
};
+
// was in date file..