JSFiddle - React, Tailwind, and code Playground

HTML

<form method="POST">
    <input type="text" name="q"/>
    <button class="once-only">Send</button>
</form>

JavaScript

$(document).ready(function(){
    $(".once-only").click(function(){
        if($.data(this, 'clicked')){
          return false;
        }
        else{
          $.data(this, 'clicked', true);
          return true;
        }
    });
});