switch case kind menu in Espruino?

I actually had a menu library I'd fiddled with myself. I'll see if I can dig it out. Personally, I stored the whole menu as structure where the values were functions that got executed when selected, something like:

var myMenu2 = {
  "A Title":0,
  "Back":function() {set_menu(myMenu); },
};
var myMenu = {
  "Main Menu Title":0,
  "A Submenu":function() { set_menu(myMenu2); },
  "Run some code":function() { ... }
};

It made it relatively simple and easy to read. The menu code then just iterates over the object's fields and draws them, then when selected it runs the function.