JSFiddle - React, Tailwind, and code Playground

by nobuts

HTML

Src 1: <input type='text' class='src' data-dest="dest1">
Dest 1: <input type='text' id='dest1' readonly>
<br />
Src 2: <input type='text' class='src' data-dest="dest2">
Dest 2: <input type='text' id='dest2' readonly>

JavaScript

$(document).ready(function() {
  $('.src').on('input', function() {
    var $src = $(this);
    var dst = $src.data('dest');
    $('#' + dst).val($src.val());
  });
});