Switch is Evil, Really?

gistfile1.js

var action1 = function(){
    return "Action 1 executed"
};
var action2 = function(){
    return "Action 2 executed"
};
var def = function(){
    return "Default Action Executed"
};

var aCase = "case1";

//Using a lookup Hash
var cases = {
    case1:action1,
    case2:action2,
    "default":def
};
if(!aCase in cases) aCase = "default";
cases[aCase]("args to pass");

//Using switch
switch(aCase){
    case "case1":
        action1(args);
        break;
    case "case2":
        action2(args);
        break;
    default:
        def(args);
        break;
}