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Flatten an Array of Arrays in Swift

...hmiBozdag's answer, 1. Methods in public extensions are public. 2. Removed extra method, as start index will be always zero. 3. I did not find a way to put compactMap inside for nil and optionals because inside method T is always [Any?], any suggestions are welcomed. let array = [[[1, 2, 3], 4], 5...
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How to check if a process is running via a batch script

...f "%ERRORLEVEL%"=="0" echo Program is running It doesn't need to save an extra file, so I prefer this method. share | improve this answer | follow | ...
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How to vertically center a div for all browsers?

... I had found this solution elsewhere first, but extra kudos to this particular answer for mentioning the -webkit-transform variant in particular, which I needed to make this method work in phantomjs... ended hours of struggling so thank you! – drmrbre...
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Is there a standard naming convention for git tags? [closed]

...st time, and we name the tag with the same name as the branch, but with an extra identifier about what particular version it is, e.g. "1.6-release" or "1.6-beta" or "1.6-rc2", et cetera. ... ------o---o---o--o---o--- ... master / / / / ... ---o------(*)--- ... 1....
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Setting Environment Variables for Node to retrieve

... If you are looking for extra safety then github.com/rolodato/dotenv-safe and a few tests should do it. – ctrlplusb Jan 13 '16 at 23:35 ...
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Best practices to handle routes for STI subclasses in rails

...ethodError (undefined method `building_url' for I ended up adding in the extra routes for the child classes and pointing them to the same controllers resources :structures resources :buildings, :controller => 'structures' resources :bridges, :controller => 'structures' Additionally: &...
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How do I query if a database schema exists

... Just to be extra "defensive", the following version generates a Type conversion error to account for the possibility (however unlikely) of > 1 matching Schema's similar to how validation code often intentionally Throw Exception's bec...
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Is #pragma once a safe include guard?

... To use include guards, there is the extra requirement that you must define a new symbol such as #ifndef FOO_BAR_H, normally for a file such as "foo_bar.h". If you later rename this file, should you adjust the include guards accordingly to be consistent with thi...
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How do I draw a shadow under a UIView?

... Just add that extra line in addition to the others. – christophercotton Oct 2 '11 at 23:43 11 ...
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How to create a JavaScript callback for knowing when an image is loaded?

... .complete + callback This is a standards compliant method without extra dependencies, and waits no longer than necessary: var img = document.querySelector('img') function loaded() { alert('loaded') } if (img.complete) { loaded() } else { img.addEventListener('load', loaded) img.a...