clone

[UPDATED Sept, 24] I am trying to use ngReact instead of ngRepeat to improve performance when I modify my $watched array of objects. For each object (a map marker) contained in the controller, I want to create a <button> , with the marker.title as text. For this purpose, I crated a React component that $watches an array of markers. Such a contains a list of , one for each marker. I supposed that the component will result changed only if I modify the list of markers, and then the list of buttons. However this is not the case. [TypeError]: Illegal invocation at isArrayLike (angular.js:274) at

I implemented the copy constructor as it is described here . But still the problem is that when I update route_copy , then the same update is applied to route . So, I don't understand what is wrong in my code? public class Route implements Comparable<Route> { private List<Site> sites; public Route() { sites = new ArrayList<Site>(); } public Route(List<Site> sites) { this.sites = sites; } /** * Copy constructor */ public Route(Route r) { this(r.sites); } public void deleteSite(Site s) { this.sites.remove(s); } } public processData(Route route) { Route route_copy = new Route(route); Site s =

I have this function duplicateCourseAction whose goal is to ... duplicate a Course object public function duplicateCourseAction(Request $request) { if ($this->getRequest()->isXmlHttpRequest() == false) { return new Response("Bad request", 405); } $em = $this->getDoctrine()->getManager(); $parameters = $request->request->all(); $course = $em->getRepository('EntTimeBundle:Course')->findOneById($parameters['id']); $duplicate = clone $course; $duplicate->setDate(new \DateTime($parameters['date'])); $em->persist($duplicate); $em->flush(); return new Response("200"); } According to documentations,

I have an application which allows users to dynamically create divs containing kendo inputs. To do so I have a div which contains multiple kendo inputs which I use as a sort of template. When the user decides to add a section to the page, i clone my div using jquery.clone(). Everything looks fine in the UI, but since the kendo inputs only get initialized one time in HTML and are then copied, the inputs are not rebuilt therefore the initial ID is not unique and the inputs are not functional. I tried to fix this programmatically by doing var $kendoInputs = $$(".draggableContainer .k-input"); for

I've got troubles with cloning in Scala. Is this possible to clone an object of an arbitrary type T? Something like this: import collection.immutable.Stack object Tester extends App { trait Grand[T <: Cloneable] { val stack = Stack[T]() val h: T def snapshot() { stack push h.clone().asInstanceOf[T] } } } however it throws: scala: method clone in class Object cannot be accessed in T Access to protected method clone not permitted because prefix type T does not conform to trait Grand in object Tester where the access take place What goes wrong there? Mitrakov Artem I was advised on this question.

As per the JAVA documentation, the super.clone() when called returns a shallow copy of the object. In the code below I have two objects name and id ; and one primitive variable num . When the super.clone() method is called on the first object, it seems to be creating a deep copy of the objects(name and id) in addition to an expected copy of only num. After cloning the object obj, I have changed its name and id fields. These changes should be reflected in the cloned object if a shallow copy was being made. Am I right? public class Cloning implements Cloneable { String name; int num; Integer id;