JSFiddle - React, Tailwind, and code Playground

by db_dev

HTML

<script src="http://knockoutjs.com/downloads/knockout-2.2.1.js"></script>
<script src="//cdnjs.cloudflare.com/ajax/libs/knockout.mapping/2.3.5/knockout.mapping.js"></script>
Open your debug console and click run to see the generated view model.

JavaScript

var data = {
    shouldBeCopied: "copied",
    nested: {
        shouldBeCopied : "copied",
        bluebird: "something"
        
    }
};
var vm = ko.mapping.fromJS(data, {
    'copy': ["shouldBeCopied"],
});

console.log(vm);