JSFiddle - React, Tailwind, and code Playground

HTML

<input type="number" id="test" val="" step="0.01" min="0" max="5">
<span id="here"></span>

JavaScript

$("#test").on("change keyup", function(){
	let val = $("#test").val();
  if(val.endsWith("."))
  {
  	$("#here").html('works!');
  }
  
  $("#here").html(val);
});