create function in javascript with custom prototype

Question

So I created a function like this,

var functionName = function(arg1) { //code logic here; }

At the same time, I need this function to work

Answer 1

You want to implement a delegate to myObj:

     var functionName = function(arg1) { // code }

     functionName.myObj = new MyObj();
     for (prop in functionName.myObj) {
       if (functionName.myObj.hasOwnProperty(prop)) {
         functionName.__defineGetter__(prop, function() { return functionName.myObj[prop]; } );
       }
     }