How to put dynamic name of functions in javascript?

Dynamic names of functions in javascript:

In some conditions we are in need of dynamic function names.

In js we can do this by creating classes.

for e.g.

 var surgeonVal = 1; // value for id
     function surgeonPagination() {
    $('.nav-next').click(function (e) {  // next button clicked
    var result = Class.callFunc(surgeonVal);
    surgeonVal++;
    });
 }

var Class = (function (window) {
    return {
        1: function () {
            //Do some work
        },
        2: function () {
            //Do some work
            }
        },
        3: function () {
            //Do some work
        },
       
        callFunc: function (funcName) {
            return this[funcName]();
        }
    };
})(window);

In this above example I want to call some functions as accordingly to change value of "surgeonVal". So I create a class and call it's function as accordingly.

Thanks