JSFiddle - React, Tailwind, and code Playground

HTML

<link rel="stylesheet" href="http://ajax.googleapis.com/ajax/libs/jqueryui/1.8.4/themes/ui-lightness/jquery-ui.css">

JavaScript

var myText = "The great white shark is the father of bite theory.";
var i = -1;

myText = myText.replace(/the/gi, function() {
    return ++i;
});

alert( myText );