Dispatch Tables

dispatchTables.js

var thingsWeCanDo = {
    doThisThing      : function() { /* behavior */ },
    doThatThing      : function() { /* behavior */ },
    doThisOtherThing : function() { /* behavior */ },
    default          : function() { /* behavior */ }
};

var doSomething = function(doWhat) {
    var thingToDo = thingsWeCanDo.hasOwnProperty(doWhat) ? doWhat : "default"
    thingsWeCanDo[thingToDo]();
}

var commandTable = {
    north:    function() { console.log("north"); },
    east:     function() { console.log("east");  },
    south:    function() { console.log("south"); },
    west:     function() { console.log("west");  },
}

function testDispatchTable(command) {
    commandTable[command]();
}