JSFiddle - React, Tailwind, and code Playground

HTML

<input id="longInput" dir="rtl" value="http://stackoverflow.com/questions/1962168/scroll-to-the-very-right-of-a-long-text-input">

JavaScript

$("#longInput").focus(function () {
         $(this).attr('dir', 'ltr');
    });
 $("#longInput").blur(function () {
         $(this).attr('dir', 'rtl');
    });