Example of calling a function expression with console.log.

funcExpress.js

function adventureSelector ( userChoice ) {
  if (userChoice == 1) {
    return function () {
    alert("You've selected the Vines of Doom!\n" +
          "Hope you have a swingin' time.");
    };
  } else if (userChoice == 2) {
    return function () {
    alert("Looks like you want the Lake of Despair!\n" +
           "Watch out for crocs. And I ain't talkin' about shoes.");
    }; 
  } else if (userChoice == 3) {
    return function () {
      alert("The Caves of Catastrophe, really?\n" +
            "Alright, well....nice knowing you.");
    };
  }
}

console.log(adventureSelector(3)());