JSFiddle - React, Tailwind, and code Playground

by namnium1125

HTML

<button>btn</button> step : <input type="number" value="10" />

JavaScript

$(function(){
  var glbl = 5;

  var lcl = new (function(){
    this.step = 10;
    this.add = function(){
      glbl += this.step;
      alert(glbl);
    };
  })();

  $("button").click(function(){lcl.add();});
  $("input").on("change",function(e){
    lcl.step = parseInt(e.target.value);
  });
});