item.php

// Get Catalog
$item = new Item($pdo);
$item_list = $item->get_items();
echo json_encode($item_list);

typeahead-data.js

var items = ['Item One', 'Item Two', 'Item Million'];

How do I use the data from jQuery to populate the items instead of hard coding?

$.getJSON('item.php', function (items) {

var typeahead_items = ????;

});