overriding

appendChild = function(message) { console.log("intercepted!"); } using the code above does not seem to work. Anyone knows? What you might want to replace is Element.prototype.appendChild but it's probably a bad idea. This example adds the text intercepted in the inserted element : var f = Element.prototype.appendChild; Element.prototype.appendChild = function(){f.apply(this, arguments);arguments[0].innerHTML="!Intercepted!"; }; document.body.appendChild(document.createElement("div")); Demonstration It is ill advised to overwrite native functions, but if you do it than make sure you return the

I am considering migrating an angular 1.4 application to angular 2 and I wonder if it will be possible to override components' template like we do in angular1 using $provide.decorator (like Can you override specific templates in AngularUI Bootstrap? ). I am looking for something like TestComponentBuilder.overrideTemplate but for a non-testing scenario. Does Angular2 comes with something similar? Check out this answer from stackoverflow Override/extend third-party component's template . The main idea is you can write your own component and extend third party component. import {component} from

If class Human inherits some methods from superclass Mammal unchanged (such as laysEggs: () -> false ) and overrides other methods (such as postsToStackOverflow : () -> true ), is there any difference between how the different methods are indicated in portion of the UML static class diagram for Human ? For example, are only the overridden methods shown in the box for Human , or are both shown, with some annotation for the overridden methods? Now there is. Some anonymous got me to dig into the 2.5.1. specs . On p. 102 it says Members that are inherited by a Classifier may be shown on a diagram

I'm wondering if there is any good reason why this behaviour is possible in the current PHP 5.4 implementation: trait T { public function test(PDO $pdo) {} } class C { use T; public function test(DOMDocument $dom) {} } I thought that the fact that a class uses a trait, guaranteed that this class had a specific interface available. But here, if we inadvertently override the trait method for another purpose, we don't even receive a Strict Standards notice, as with classic inheritance. Is this specifically allowed on purpose? What for? This behavior is documented. From php.net ( http://php.net

In .NET, one can specify a "mustoverride" attribute to a method in a particular superclass to ensure that subclasses override that particular method. I was wondering whether anybody has a custom java annotation that could achieve the same effect. Essentially what i want is to push for subclasses to override a method in a superclass that itself has some logic that must be run-through. I dont want to use abstract methods or interfaces, because i want some common functionality to be run in the super method, but more-or-less produce a compiler warning/error denoting that derivative classes should

How can I make it so that any class that inherits from my base class is forced to override a specific method? I don't want to use a protocol, because that wouldn't make this behavior automated. @interface MyBaseClass : NSObject { } - (void)performAnAction; @end @implementation MyBaseClass - (void)performAnAction { @throw([NSException exceptionWith...]); } @end Lily Ballard How exactly do you mean, force them to override it? If you simply implement the parent method like so: - (void)performAction { NSAssert(NO, @"The method %@ in %@ must be overridden.", NSStringFromSelector(_cmd),

public <S extends T> List<S> save(Iterable<S> entities) { //... } If I use following method to override @Override public List<MyType> save(Iterable<MyType> structures) { List<MyType> result = new ArrayList<>(); //... return result; } I get following error: method does not override or implement a method from a supertype name clash: save(Iterable<MyType>) in MyTypeRepositoryImpl and <S>save(Iterable<S>) in SimpleJpaRepository have the same erasure, yet neither overrides the other where S,T are type-variables: S extends T declared in method <S>save(Iterable<S>) T extends Object declared in class