JSFiddle - React, Tailwind, and code Playground
by Vikas
HTML
<script src="//ajax.googleapis.com/ajax/libs/angularjs/1.2.12/angular.min.js"></script>
<div ng-app = 'myApp'>
<div ng-controller = 'myCtrl'>
Parent<br>
<input ng-model='a'>
{{a}} and {{b}} <br>
<input ng-model='o.a'>
{{o.a}}
<div ng-controller = 'myCtrl2'>
<br><br>Child<br>
<input ng-model='a'>
{{a}} and {{b}} and {{c}} <br>
<input ng-model='o.a'>
{{o.a}}
</div>
</div>
<hr>
</div>
JavaScript
angular.module('myApp', [])
.controller("myCtrl", function($scope) {
$scope.a = 55;
$scope.b = 66;
$scope.o = {a:'0'};
}).controller("myCtrl2", function($scope) {
$scope.a = 22;
$scope.b = 33;
$scope.c = 44;
$scope.o = {a:'2'};
});