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in_array multiple values

...set", and the keys you are searching for the other. Check if ALL needles exist function in_array_all($needles, $haystack) { return empty(array_diff($needles, $haystack)); } echo in_array_all( [3,2,5], [5,8,3,1,2] ); // true, all 3, 2, 5 present echo in_array_all( [3,2,5,9], [5,8,3,1,2] ); // f...
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dealloc in Swift

...urces, you might need to perform some additional clean-up yourself. For example, if you create a custom class to open a file and write some data to it, you might need to close the file before the class instance is deallocated. ...
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When NOT to use yield (return) [duplicate]

...ral useful questions here on SO about the benefits of yield return . For example, 11 Answers ...
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Why does Math.Floor(Double) return a value of type Double?

...eed to get the left hand side integer value from a decimal or double. For Ex: I need to get the value 4 from 4.6. I tried using Math.Floor function but it's returning a double value, for ex: It's returning 4.0 from 4.6. The MSDN documentation says that it returns an integer value. Am I missing somet...
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How would I run an async Task method synchronously?

... here public static class AsyncHelpers { /// <summary> /// Execute's an async Task<T> method which has a void return value synchronously /// </summary> /// <param name="task">Task<T> method to execute</param> public static void RunSync(Func&lt...
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How to use MySQL DECIMAL?

...4 bit instead of 32 bit) version of FLOAT. Floating point numbers are approximate representations of real numbers and they are not exact. In fact, simple numbers like 0.01 do not have an exact representation in FLOAT or DOUBLE types. DECIMAL columns are exact representations, but they take up a lot...
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How to validate an OAuth 2.0 access token for a resource server?

...auth/userinfo.profile https://www.googleapis.com/auth/userinfo.email", "expires_in":436 } Microsoft way Microsoft - Oauth2 check an authorization Github way Github - Oauth2 check an authorization Request: GET /applications/:client_id/tokens/:access_token Respond: { "id": 1, "url": "...
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Best way to find the intersection of multiple sets?

...is translates to: u = set.intersection(*setlist) where *a_list is list expansion Note that set.intersection is not a static method, but this uses the functional notation to apply intersection of the first set with the rest of the list. So if the argument list is empty this will fail. ...
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What is an example of the Liskov Substitution Principle?

...amental principle of object oriented design. What is it and what are some examples of its use? 31 Answers ...
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How to get thread id from a thread pool?

I have a fixed thread pool that I submit tasks to (limited to 5 threads). How can I find out which one of those 5 threads executes my task (something like "thread #3 of 5 is doing this task")? ...