JSFiddle - React, Tailwind, and code Playground

HTML

<script src="https://code.jquery.com/jquery-1.9.1.js"></script>
<script src="https://code.jquery.com/ui/1.10.1/jquery-ui.js"></script><input type="text" id="target" />

JavaScript

$(function() {
  $("#target").keyup(function(){
		$(this).val($(this).val().replace(/,/, "."));
	});
});