JSFiddle - React, Tailwind, and code Playground

HTML

<input id="in1" />

JavaScript

$(function() {
        $('#in1').autocomplete({
            source: ["five","six","seven","eight"],
            minLength: 0
        }).focus(function(){
            var newtag = [ "one", "two", "three", "four" ];
            $("#in1").autocomplete('option', 'source', newtag);           
           $("#in1").data("autocomplete").search($(this).val());
        });
    });