how to clean up my ajax code?

[acoustic sail]

hey guys. can smb help me out? im trying to clean up the code so its more readable.i started with this:

function autocompleteCity() {
    $( ".city-autocomplete" ).on( "input", function() {
        $.ajax({
            method: "POST",
            url: '?m=customeradd',
            data: {
                search : $(this).val(),
                state:   $('.state-options').find(":selected").data('id-sav'),
                mode : 'city'
            },
            success: function(data){
                $('#city-autocomplate-wrapper').empty();
                let result = JSON.parse( data );

                let autoElem = '<div class="auto-elem">';
                $.each( result, function( key, value ) {
                    let select = '<div class="autocompleter-elem"><span data-id="'+ value.id_reg_centras +'">' + value.name  +' '+ value.short_type +'</span> </div>'
                    autoElem = autoElem.concat(" ", select);
                });
                autoElem = autoElem.concat(" ", '</div>');
                $( "#city-autocomplate-wrapper" ).append( autoElem );
            }
        });
    } );
}

and so far i have this:

function getCitiesForAutocomplete(searchValue, stateId) {
    const ajaxRequest = {
        method: 'POST',
        url: '?m=customeradd',
        data: {
            search: searchValue,
            state: stateId,
            mode: 'city'
        }
    };

what to do next? id like to work on making that success function (or whatever it is) more readable. can smb help me out or give some guidance? much appreciated 😄

[static saddle]

well... drop jQuery and use fetch would be my first instinct, tbh, as it makes use of async and thereby makes your code flatter.

[acoustic sail]

thanks, i was thinking about that too. but before that i want to understand what is actualyl going on and to rewrite it in mor eradable and understandable manner. could you help me do it? im not asking you to rewrite it, but to just guide me a little, if thats ok 😄

[static saddle]

Where do you face blockers exactly?