method-invocation

I have this general function to invoke a WinForm control: public static void Invoke(this Control c, Action action) { if (c.InvokeRequired) c.TopLevelControl.Invoke(action); else action(); } I'm thinking of making it better by bringing harsher constraints to prevent things that are meaningless, may be like: button1.Invoke(() => list.Add(1)); Also there can be redundant typing like: button1.Invoke(() => button1.Hide()); since we are already specifying the this is button1 . So I made it: public static void Invoke<T>(this T c, Action<T> action) where T : Control { if (c.InvokeRequired) c

I understand what prototypal inheritance is all about, but I must be confused as to the implementation. I thought that modifying a function constructor's prototype would affect all instances of that constructor, but this isn't the case. How does JS do the method lookup from an object to its prototype? Here's an example function A(name){ this.name = name; } a = new A("brad"); A.prototype = { talk: function(){ return "hello " + this.name; } } a.talk() // doesn't work b = new A("john"); b.talk() // works I was under the impression that a would look for the method talk() in A 's prototype, so any

I have been confused about this for a while, even despite reading the Scala Style Guide - Method Invocation several times. I want to be able to call this method def foldRVL[A,B](l: List[A], z: B)(f: (A, B) => B) = //"Right-Via-Left" l.reverse.foldLeft(z)((a, b) => f(b, a)) using dot notation like this List(1,2,3).foldRVL(0)(_ + _) . And not like this: foldRVL(List(1,2,3), 0)(_ + _) . Also, sometimes I've seen code that shows methods that actually either takes zero parameters in their signature, or one fewer parameters than I would expect them to take, and still properly take a parameter using

I think I need some help understanding the Dispatcher Queue . When new work arrives it gets added at the beginning of the dispatcher queue and when the Dispatcher wants to process a working item it gets removed from the beginning. In more general terms: If there is work it gets stored in a FIFO manner inside the queue and processed as long there is no work left. The MSDN documentation here is referring to a loop and a frame : The Dispatcher processes the work item queue in a loop. The loop is referred to as a frame. But where is a loop in this context ? For me a loop is something that iterates