JSFiddle - React, Tailwind, and code Playground

HTML

<div data-bind='foreach: note'>
    <p><span data-bind='text: post'></span></p>
    <p><input data-bind='value: post'/></p>
</div>

JavaScript

var Model = function (notes) {
      this.note = ko.observableArray(notes);
 };
 var Post = function (data) {
     this.post = ko.observable(data);
 };

 var model = new Model([new Post("a"), new Post("a")]);
 ko.applyBindings(model);