Performance: inline- vs. prototype-defined methods ?

hi,

got a performance problem; situation is as described below (see "Version
Inline"), i've got a javascript class item with many methods defined
inside and with every call to "new item()" the js interpreter has to
look through all the method definitions (did a profile using Venkman)
which takes too much time for me ..

would it make a difference if i define these methods outside the
constructor via .prototype (see "Version Prototype") ??

Version Inline:

   item = function () {
     this.myMethod1 = function() { .. }
     this.myMethod2 = function() { .. }
     this.myMethod3 = function() { .. }
      ...
     this.myMethod999 = function() { .. }
   }

Version Prototype:

   item = function () {

   }

   item.prototype.myMethod1 = function() { .. }
   item.prototype.myMethod2 = function() { .. }
   item.prototype.myMethod3 = function() { .. }
    ...
   item.prototype.myMethod999 = function() { .. }

many thanks in advance !!

-
Gerald Stampfel
gstampfel@sedisys.com
Received on Tue Feb 7 21:28:35 2006