const input = document.querySelector("input#myinput"); input.compleet({ // OR compleet(input, { // General options maxResults: 10, // max results, default is 5 raw: false, // whether to use innerHTML or innerText to set autocomplete options, default is false (innerText) // ^^^^^ DO NOT SET THIS TO TRUE IF YOU PROVIDE UNFILTERED USER TAGS, YOU HAVE BEEN WARNED // Tag source options source: function(term, resp) { const val = term.split(" ").pop(); // split the value by spaces const terms = getTermsFromSomewhere(); // get the terms from somewhere const matched = terms.filter(function(t) { return t.startsWith(val); }); // filter the terms resp(matched, val); // send the response }, // OR tags: function(resp) { getTermsFromSomewhere(function(terms) { resp(terms); }); } });