JSFiddle - React, Tailwind, and code Playground

HTML

<div>
    <input type="text" name="emailAddress" />
</div>
<input type="button" id="addEmailAddress" value="add another email" />

JavaScript

$(function(){
    var emailAddress = $("[name=emailAddress]");
    
    $("#addEmailAddress").click(function(){
        emailAddress.after(emailAddress.clone());
    });
});