In this example of angular.forEach, Push will add values from ['A', 'B', 'C', 'D'] array to val array and index of ['A', 'B', 'C', 'D'] array to idx array and that will be displayed in the UI by the help of ng-repeat. See the code snippet:
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head>
<title>Welcome in the AngularJS</title>
<script src="https://ajax.googleapis.com/ajax/libs/angularjs/1.4.2/angular.min.js"></script>
</head>
<body ng-app="app">
<div ng-controller="forEachController">
<p ng-repeat="ix in idx">{{ix}}</p>
<p ng-repeat="vl in val">{{vl}}</p>
</div>
</body>
</html>
<script>
var app = angular.module("app", []);
app.controller('forEachController', ['$scope', function ($scope) {
$scope.idx = [];
$scope.val = [];
angular.forEach(['A', 'B', 'C', 'D'], function (value, index) {
$scope.idx.push(index);
$scope.val.push(value);
});
}]);
</script>
