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How to find topmost view controller on iOS
I've run into a couple of cases now where it would be convenient to be able to find the "topmost" view controller (the one responsible for the current view), but haven't found a way to do it.
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Can we have functions inside functions in C++?
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Modern C++ - Yes with lambdas!
In current versions of c++ (C++11, C++14, and C++17), you can have functions inside functions in the form of a lambda:
int main() {
// This declares a lambda, which can be called just like a function
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Checkboxes in web pages – how to make them bigger?
The standard checkboxes rendered in most browsers are quite small and don’t increase in size even when a larger font is used. What is the best, browser-independent way to display larger checkboxes?
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“Cannot connect to iTunes Store” in-app purchases
...ct identifiers, but upon purchase I receive the dreaded "Cannot connect to iTunes Store". Interesting thing is that restore purchases seems to work - iTunes login pops up.
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Split string every nth character?
Is it possible to split a string every nth character?
16 Answers
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Does Foreign Key improve query performance?
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Foreign Keys are a referential integrity tool, not a performance tool. At least in SQL Server, the creation of an FK does not create an associated index, and you should create indexes on all FK fields to improve look up times.
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Is a statically-typed full Lisp variant possible?
Is a statically-typed full Lisp variant possible? Does it even make sense for something like this to exist? I believe one of a Lisp language's virtues is the simplicity of its definition. Would static typing compromise this core principle?
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iPhone SDK: what is the difference between loadView and viewDidLoad?
When working with views and view controllers in an iPhone app, can anyone explain the difference between loadView and viewDidLoad?
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How to clear basic authentication details in chrome
I'm working on a site that uses basic authentication. Using Chrome I've logged in using the basic auth. I now want to remove the basic authentication details from the browser and try a different login.
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Is not an enclosing class Java
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ZShape is not static so it requires an instance of the outer class.
The simplest solution is to make ZShape and any nested class static if you can.
I would also make any fields final or static final that you can as well.
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