JSFiddle - React, Tailwind, and code Playground

HTML

<div ng-app="myApp" ng-controller="dummy">
    <form name="myform">
        <input type="text" ng-model="message1" ng-change="myTextArea = message1 + message2" />
        <input type="text" ng-model="message2" ng-change="myTextArea = message1 + message2" />
    <p>
        <textarea id="textarea1" cols="80" rows="10" ng-model="myTextArea" >
        </textarea>
    </p>
    <p>
        <button ng-click="save()">Save</button>
        <button ng-click="clear()">Clear</button>
    </p>
    </form>
</div>

JavaScript

angular.module('myApp', [])
    .controller('dummy', ['$scope', function ($scope) {
                  
    $scope.save = function () {
        console.log($scope.myTextArea);
    };
}]);