Here is the updated code
Html:
<div ng-app="myApp" ng-controller="myButtonCtrl">
<input type="text" ng-model="source">
<br />
<br />
<input type="button" value="button" ng-click="copyText(source);" />
<br />
<br />
<input type="text" ng-model="destination" />
</div>
and JavaScript:
var myButtonApp = angular.module("myApp", []);
myButtonApp.controller("myButtonCtrl", [
"$scope", function ($scope) {
$scope.source = "Sample text to copy";
$scope.destination = "";
copyText = function (obj) {
alert(obj);
$scope.destination = obj;
};
$scope.copyText = copyText;
}
]);