Angular: Empty Fiddle

http://angularjs.org/

HTML

<script src="http://ajax.googleapis.com/ajax/libs/angularjs/1.2.12/angular.min.js"></script>
<div ng-controller="MyCtrl">
    <input data-ng-model="inputValue" />
    <p>This value: ----<span data-ng-bind="inputValue"></span>----</p>
    <p>This value (echo): ----<span data-ng-bind="inputValueEcho"></span>----</p>
</div>

CSS

span {
    white-space: pre;
}

JavaScript

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

//myApp.directive('myDirective', function() {});
//myApp.factory('myService', function() {});

function MyCtrl($scope) {
    

    $scope.$watch('inputValue', function(thisValue) {
        $scope.inputValueEcho = "hello";
        $scope.inputValue="   hello  ";
        
    });
}