JSFiddle - React, Tailwind, and code Playground

by Mottie

JavaScript

var data = {
    "Active":true,
    "EndDate":"\/Date(-62135578800000-0500)\/",
    "StartDate":"\/Date(1280635200000-0400)\/"
}
   
var start = parseInt(data.StartDate.replace(/\/Date\((.*?)[+-]\d+\)\//i,"$1"), 10),
    date = new Date( start ),
    fStart = date.getMonth()+1 + '/' + date.getDate() + '/' + date.getFullYear();

alert(fStart);