Angular: Empty Fiddle
http://angularjs.org/
HTML
<script src="http://code.angularjs.org/angular-1.0.1.js"></script>
<div ng-controller="MyCtrl">
<input ng-model="test1"></input>
<input ng-model="test2[0]"></input>
<p>{{test1}}</p>
<p>{{test2[0]}}</p>
</div>
JavaScript
var myApp = angular.module('myApp',[]);
function MyCtrl($scope) {
$scope.test1 = 'text goes here';
$scope.test2 = [$scope.test1];
}