AngularJS Example:

HTML

<link rel="stylesheet" href="http://twitter.github.com/bootstrap/assets/css/bootstrap.css">
<div ng-app ng-controller="MyCtrl">
<form name="testForm" class="simple-form">
    <label class="item item-input item-stacked-label">
                    <span class="input-label">Title</span>
                    <input type="text" ng-model="formData.shortDesc" required="">
                </label>
    <button class="button button-block button-positive" type="submit" ng-click="saveFormData()" >Opslaan </button>
  </form>
  
  <form name="tokenForm" ng-submit="token()">
        <div>
            <input type="search" ng-model="keks">
            <input type="submit" value="Submit VPP Token">
        </div>
    </form>
  <pre>pristine = {{formData | json}}</pre>
  <pre>pristine = {{testForm.$pristine}}</pre>
</div>

JavaScript

function MyCtrl($scope) {
    $scope.saveFormData = function() {
        if ($scope.testForm) {
            $scope.testForm.$setPristine();
            $scope.formData = {};
        }
    };
$scope.token = function () {
    $scope.vpptoken = $scope.keks;
    $scope.tokenForm.$setPristine();
  };
}