JSFiddle - React, Tailwind, and code Playground

HTML

<button onclick="extractJson()">getJSON</button>

JavaScript

function extractJson() {

    var jsonData = '<?xml version="1.0" encoding="utf-8"?><string xmlns="http://tempuri.org/">[{"isAssigned": false,"Name": "c:\\inetpub\\wwwroot\\XLEZ\\CLIENT","LastModified": ""},{"isAssigned": true,"Name": "\\mokuji.html","LastModified": "20140806 165709"},{"isAssigned": false,"Name": "\\result.html",{"LastModified": "20131002 235302"}]</string>';
    var extractdJson = // extracted jason fron jsonData 
    alert(extractdJson);
}