JSFiddle - React, Tailwind, and code Playground
HTML
<form action="demo_form.asp" autocomplete="on">
First name:<input type="text" name="fname" /><br>
Last name: <input type="text" name="lname" /><br>
<br>
<input type="submit" />
</form>
JavaScript
document.getElementsByName("fname")[0].autocomplete="off"