JSFiddle - React, Tailwind, and code Playground

HTML

<input type="number" id="n" value="0" step=".5" />
<input type="hidden" id="v" value = "0"/>

JavaScript

$("#n").on('keyup mouseup', function () {
    var current = $("#n").val();
    var prevData = $("#v").val(); 
    if(current > prevData || current < prevData){
       $("#v").val(current);
       var newv = $("#v").val(); 
       alert(newv);
    } 
});