JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://knockoutjs.com/downloads/knockout-2.2.1.js"></script>
<script src="https://rawgithub.com/SteveSanderson/knockout.mapping/master/build/output/knockout.mapping-latest.debug.js"></script>
<input type="text" data-bind="value: code" />

JavaScript

var data = {
code:'eee'
    
    };




var vm = ko.mapping.fromJS(data);


ko.applyBindings(vm);