Am a bit confused here, what does the formatResult and formatItem do in the JQuery Autocomplete plugin?

I have a function that is returning a comma separated string (from Django), but my autocomplete function is unable to split the string into individual entries/rows, how can i achieve this using autocomplete functions?

e.g the returned result looks like this and this what autocomplete is showing :- ["one","oneTwo", "Onethree", "anotherOne"]

I want when showing in the autocomplete field to have it split like this:-

one
oneTwo
Onethree
anotherOne

I have a feeling i can use the formatResult and formatItem but i dont know how, there are no good examples out there !!

my code in the html template:

 function autoFill(){
           $("#tags").autocomplete("/taglookup/", {
        width: 320,
        max: 4,
        highlight: false,
        multiple: true,
        multipleSeparator: " ",
        scroll: true,
        scrollHeight: 300
         });
       }

Am using Dajango to process the GET request.

Gath

javascript jquery django
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