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Providing a default value for an Optional in Swift?

...he idiom for dealing with optionals in Swift seems excessively verbose, if all you want to do is provide a default value in the case where it's nil: ...
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HttpClient.GetAsync(…) never returns when using await/async

...SP.NET, only one thread can handle a request at a time. You can do some parallel processing if necessary (borrowing additional threads from the thread pool), but only one thread would have the request context (the additional threads do not have the request context). This is managed by the ASP.NET S...
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Add single element to array in numpy

...swered Sep 7 '11 at 11:15 reader_1000reader_1000 2,2831515 silver badges1414 bronze badges ...
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Convert Django Model object to dict with all of the fields intact

How does one convert a Django Model object to a dict with all of its fields? All ideally includes foreign keys and fields with editable=False . ...
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How to loop through all enum values in C#? [duplicate]

...rough an extra iterator (.Cast<Foos>), and (2) you don't need to box all the values and unbox them again. Şafak's cast will remain valid as long as they don't change the array type returned to some other type (like object[]). But we can be completely sure they won't because (a) it would lose ...
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How to fix Python indentation

...py script that you find in the Tools/scripts/ directory of your Python installation: Change Python (.py) files to use 4-space indents and no hard tab characters. Also trim excess spaces and tabs from ends of lines, and remove empty lines at the end of files. Also ensure the last line ...
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std::vector versus std::array in C++

... should one be preferred over another? What are the pros and cons of each? All my textbook does is list how they are the same. ...
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Enabling HTTPS on express.js

... All is written here: github.com/visionmedia/express/wiki/Migrating-from-2.x-to-3.x Paragraph Application function – codename- Jul 31 '12 at 16:50 ...
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What is the best project structure for a Python application? [closed]

...l architecture of your application. /foo /bar /baz I recommend putting all of this under the "name-of-my-product" directory. So, if you're writing an application named quux, the directory that contains all this stuff is named /quux. Another project's PYTHONPATH, then, can include /path/to/quu...
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How to output a multiline string in Bash?

How can I output a multipline string in Bash without using multiple echo calls like so: 7 Answers ...