JSFiddle - React, Tailwind, and code Playground

HTML

<input type="text" name="search" id="search" list="searchresults" placeholder="Search 'Val'" autocomplete="off">
<datalist id="searchresults">
</datalist>

JavaScript

searchresults = document.getElementById('searchresults');

for (let i = 0; i < 1000; i++) {
  let option = document.createElement('option');
  option.innerText = 'Val ' + (i+1);
  searchresults.appendChild(option);
}

/* <option>Ray0</option> */