simple jsom to get an item

Utils.getListItemByID = function (listName, itemID ){
var dfd =  $.Deferred();
context = SP.ClientContext.get_current();
web = context.get_web();
oList = web.get_lists().getByTitle(listName);

var currentItem = oList.getItemById(itemID);

context.load(currentItem);
context.executeQueryAsync(
function(){
dfd.resolve(currentItem);
},
function(sender,args){
dfd.reject(args.get_message());
}
);
return dfd.promise();
}


Utils.getListItemByID('blah', 36).then(function(item){ console.log(item.get_item('blahName')) },function(sender, args){ console.log(args.get_message())});