JSFiddle - React, Tailwind, and code Playground

by Dilip Prajapati

HTML

<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.min.js"></script>
<script src="https://cdnjs.cloudflare.com/ajax/libs/jquery/3.3.1/jquery.js"></script>
<div id="div-test">
  sss
</div>
<button id="btn">
click
</button >

JavaScript

$('#btn').click(function() {
   const arr = [1, 2, 3, [4, 8],
     [10, 50], 98, 100
   ]
   const sum = [].concat(...arr).reduce((acc, curr) => acc + curr)
   //document.getElementById("div-test").innerHTML = "whatever";

   $('#div-test').text(sum);
   console.log(sum);
 });