ngInitial.js

.directive('ngInitial', ['$parse', function ($parse) {
  return {
    require: 'ngModel',
    restrict: 'A',
    link: function link(scope, element, attr, model) {
      var val = attr.ngInitial || attr.value || element.text();
      $parse(attr.ngModel).assign(scope, val);
    }
  };
}]);