JSFiddle - React, Tailwind, and code Playground
HTML
<div id="output"></div>
JavaScript
(function () {
var values = "/Date(1409819809000)/";
var dt = new Date(parseInt(values.substring(6, values.length - 2)));
var dtString1 = (dt.getMonth() + 1) + "/" + dt.getDate() + "/" + dt.getFullYear();
alert(dtString1);
})();