Getting confused by stupid javascript again

[Captain]

I've been working on an app I've mentioned/asked questions about. I got stuck again. I am having a weird problem where the code I wrote won't work if I call it in the console, but it works if I actually type it all out in the console.

Here's the relevant code:

self.app.state.clients.client = new ItemsState({ accessor: function(obj) { return obj.client.id(); }
                                               , saveItem: function(item) {
                                                   var self = this;
                                                   var person = ko.toJSON(item.person);
                                                   if (person.id) { //record exists in the database, so we're updating by key
                                                     $.post('/api/person/' + person.id, person, function(resp) {
                                                       console.log(resp);
                                                       self.item().person = resp;
                                                     });
                                                   }
                                                 }
                                              });

Specifically, I'm calling the saveItem function in the console:

console> var item = viewModel.app.state.clients.client.item()
  undefined
console> item
  {itsClient: {…}, person: {…}, address: {…}, demographics: {…}, client: {…}, …}
console> viewModel.app.state.clients.client.saveItem(item)
  undefined

So it runs, but the $.post never gets triggered. I don't see a request at the server. I have made sure that person.id is defined:

console> ko.toJSON(item)
"{"person":{"middleName":null,"preferredFirstName":"Jaysen","familyName":"Bateman","preferedLastName":null,"firstName":"Jason","preferedMiddleName":null,"id":2},}

(I edited this value to get rid of irrelevant fields, so it might not be valid json anymore)

What am I missing? Something obvious and dumb, I'm sure.

[Captain]

This post is deleted!

[Captain]

@captain Yes, it was dumb and obvious. Obviously, person stored a string, so person.id was undefined...