As others have stated, scoping is the problem. Note that you can solve this by adding an extra argument to the lambda expression and assigning it a default value: >> def makeFun(i): return lambda: i … >>> a = [makeFun(i) for i in range(10)] >>> b = [lambda: i for i in range(10)] >>> c … Read more
What is the correct usage of session scope Use it for session scoped data only, nothing else. For example, the logged-in user, its settings, the chosen language, etcetera. See also: How to choose the right bean scope? And every time I visit the page, the product list will be created from the latest entries in … Read more
Not really anything more than the two ways that you have proposed, but here’s another for(var it = 0; it < 2; it++) { (function() { var m = it; setTimeout(function() { alert(m); }, 1); })(); } Essentially, you need to capture the variable value in a closure. This method uses an immediately invoked anonymous … Read more
you can see all of the scopes on the page using this CSS selector .ng-scope { border: 1px solid red; } and all of the bindings: .ng-binding { border: 1px solid red; } You can then retrieve them by converting the DOM element into selector var selector = angular.element(some_dom_element); Then use the selector to retrive … Read more
No, AnyTypeMovable&& r = move(v); here is not useful at all. Consider the following code: #include <iostream> #include <vector> class MyMovableType { int i; public: MyMovableType(int val): i(val){} MyMovableType(MyMovableType&& r) { this->i = r.i; r.i = -1; } MyMovableType(const MyMovableType& r){ this->i = r.i; } int getVal(){ return i; } }; int main() { std::vector<MyMovableType> … Read more
“Do variables declared in a conditional go out of scope at the end of the conditional?” Yes – the scope of a local variable only falls within enclosing brackets: { int x; //scope begins //… }//scope ends //x is not available here In your case, say you have class A. If you’re not dealing with … Read more
The variable scope is the whole batch in this case a stored procedure. It isn’t re-declared every loop So this is exactly as expected Edit: There is a recent blog article which is quite similar. The author was quickly corrected 🙂
If the static array is automatically freed after completing the execution, then how can we still access the values of the static array correctly? Nope, it’s not like that. static variables are initialized before starting main() and its lifetime is the entire execution of the program. So, they can be returned from functions (in which … Read more
Like everything else, Dynamic Scoping is merely a tool. Used well it can make certain tasks easier. Used poorly it can introduce bugs and headaches. I can certainly see some uses for it. One can eliminate the need to pass variables to some functions. For instance, I might set the display up at the beginning … Read more