JSFiddle - React, Tailwind, and code Playground

http://stackoverflow.com/questions/22775156/angularjs-how-would-i-go-about-selecting-a-single-row-from-an-array-based-on-id

HTML

<script src="http://code.angularjs.org/1.2.9/angular.js"></script>
<div ng-controller="FrmController">choose a post ({{visible.post}} is visible)
    <ul>
        <li ng-repeat="post in posts" style="display: inline; list-style-type: none;">
            <input type="button" ng-click="visible.post = post.id" value="{{post.id}}" />
        </li>
    </ul>
    <div ng-repeat="post in posts" ng-if="visible.post == post.id">{{post.content}}
        <form>Post your Comment (for post {{post.id}})
            <textarea ng-model="txtcomment" placeholder="Your Comment" style='width:550px'></textarea>
            <button ng-click='btn_add(post, txtcomment);txtcomment = "";' style='margin-top:10px;'>Post Comment</button>
             <h4>Comments</h4>

            <ul>
                <li ng-repeat="comnt in post.comment">{{ comnt }}<a style="float: right;" href="" ng-click="remItem(post, $index)">x</a>

                </li>
            </ul>
        </form>
    </div>
</div>

JavaScript

var myApp = angular.module('myApp', []);

myApp.controller('FrmController', function ($scope, $http) {
    $scope.visible = {
        post: 1
    };
    $scope.posts = [{
        id: 1,
        content: 'Lorem ipsum dolor sit amet, eu laboramus persecuti cum, vel prompta ornatus democritum at, te alia partiendo pri. Ei quo sumo verear. Sed ad elitr aeterno disputationi, solum philosophia ex pro. Tempor essent prodesset in his, ne diam menandri vix, feugiat menandri ad cum.',
        comment: ['first!!', 'second!!']
    }, {
        id: 2,
        content: 'Facilisi pertinacia an nec. Veniam nostro commune ei pro, in mazim labores disputationi nec, cu habeo ludus deleniti ius. Id eripuit adolescens vis, mei nemore copiosae referrentur id. Pro ut ubique delicatissimi.',
        comment: ['great post!', 'tl;dr', 'interesting']
    }, {
        id: 3, 
        content: 'Sed fugit error cu. In cetero albucius insolens pri, an sea velit altera constituto. Et perpetua splendide sed, te vel solum doming contentiones. Pro no omnes ridens liberavisse, ea pri tale cetero laoreet, pro te essent civibus assueverit. Assum essent appareat mei te, duo aeque consulatu et, te mel reque facilisis.',
        comment: ['first to comment!']
    } ];
    $scope.btn_add = function (post, comment) {
        if (comment != '') {
            var IS_VALID = true;
        }

        if (IS_VALID) {
            console.log("The form was sent");
            post.comment.push(comment);
        }
    }

    $scope.remItem = function (post, $index) {
        post.comment.splice($index, 1);
    }
});