JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app="app">
    <div ng-controller="MainCtrl">
        <input type="text" value="xyz" class="form-control" ng-model="newCommentTxt"></input> 
        <a class="clear" href="" data-ng-click="saveParentComment()">X</a>
    </div>
</div>

JavaScript

var app = angular.module("app", []);

app.controller("MainCtrl", function ($scope) {
   // $scope.newCommentTxt = "sample";

    $scope.saveParentComment = function () {
        $scope.newCommentTxt = "";
    };
});