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What does ON [PRIMARY] mean?

...'s fine to omit it and let the default happen. (Hence the "usually" MGOwen included.) Initializing variables to 0 or false is about ensuring that your code is operating in a known state, which is a logical and correctness concern and not an optimization concern. – jpmc26 ...
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Decreasing height of bootstrap 3.0 navbar

... utilty that bootstrap's site provides. And then you can downloaded it and include it in your project. The variable you are looking for is: @navbar-height share | improve this answer | ...
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Is there a way to iterate over a range of integers?

... simply doesn't consider the fact that a compile (given the language specs included a range syntax for this use case) could be build in a way to just treat i in range(10) exactly like i := 0; i < 10; i++. – Rouven B. Sep 13 '19 at 20:22 ...
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How to add dividers and spaces between items in RecyclerView?

...it though. Among its features are: A collection of stock item decorations including: Item spacing Horizontal/vertical dividers. List item share | improve this answer | foll...
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Why does the C++ map type argument require an empty constructor when using []?

...a map). Incidentally, the following compiles with no error on comeau: #include <map> class MyClass { public: MyClass(int t); }; int main() { std::map<int, MyClass> myMap; } So this might be a g++ problem. ...
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SecItemAdd and SecItemCopyMatching returns error code -34018 (errSecMissingEntitlement)

... running iOS 9.3 or later, please do file a bug report about it. Try to include the device system log in your bug report (I realise that can be tricky when dealing with customer devices; one option is to ask the customer to install Apple Configurator, which lets them view the system log). ...
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Return multiple values to a method caller

... Now that C# 7 has been released, you can use the new included Tuples syntax (string, string, string) LookupName(long id) // tuple return type { ... // retrieve first, middle and last from data storage return (first, middle, last); // tuple literal } which could then ...
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How to create a new database using SQLAlchemy?

...al version using pip: pip install sqlalchemy-utils The database helpers include a create_database function: from sqlalchemy import create_engine from sqlalchemy_utils import database_exists, create_database engine = create_engine("postgres://localhost/mydb") if not database_exists(engine.url): ...
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How to open every file in a folder?

... To be a true solution this answer should include that I think. Otherwise the answer is a dupe of the pre-existing "how to list all files in a directory" Q and A's – Hack-R Jun 11 '17 at 19:26 ...
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iPhone - Grand Central Dispatch main thread

...ch_block_t) { dispatch_async(dispatch_get_main_queue(), block) } Its included as a standard function in my repo, check it out: https://github.com/goktugyil/EZSwiftExtensions share | improve th...