I am trying to implement something like a delegation pattern in Angular. When the user clicks on a nav-item, I would like to call a function which then emits an event which should in turn be handled ...
An interviewer asked me: What is Observer and Observable and when should we use them? I wasn't aware of these terms, so when I came back to home and I started Googling about Observer and Observable ...
I recently started digging into C# but I can't by my life figure out how delegates work when implementing the observer/observable pattern in the language. Could someone give me a super-simple example...
As noted here in the context of Swing, GUI design makes frequent use of the observer pattern. Having frequently used the scheme prescribed in EventListenerList, is there a Java FX example, such as Con...
I am thinking about implementing a user interface according to the MVP pattern using GWT, but have doubts about how to proceed. These are (some of) my goals: the presenter knows nothing about the U...
I am trying to create a simple Android application that has a ActivityList of information, when the application starts, I plan to start a Service that will be constantly calculating the data (it will ...
Are there any exemplary examples of the GoF Observer implemented in Python? I have a bit code which currently has bits of debugging code laced through the key class (currently generating messages to ...
I have been reading the Gang Of Four, in order to solve some of my problems and came across the Mediator pattern. I had earlier used Observer in my projects for making some GUI application. I am a bi...
What is the best way to listen to a folder or file to see if it has been saved or if a new file has been added?
Is there any way that I can pass a function as a json string (conversion with JSON.stringify), send it to another function, parse the json and then execute the function that was in the json? I am usin...