JSFiddle - React, Tailwind, and code Playground

HTML

<script src="http://andersmalmgren.github.io/Knockout.BindingConventions/src/Knockout.BindingConventions.js"></script>
<select data-name="items" data-bind="optionsText: 'name', optionsCaption: 'Select...'"></select>

<div data-name="selectedItem">
    <span data-name="name"></span>
</div>

JavaScript

TestViewModel = function() {
    this.items = [{ name: "1" }, { name: "2" }, { name: "3" }];
    this.selectedItem = ko.observable();
};

ko.applyBindings(new TestViewModel());