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Best way to test if a generic type is a string? (C#)

...efault(T); } else { return Activator.CreateInstance<T>(); } Untested, but the first thing that came to mind. share | improve this answer | follow ...
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How to check if a string array contains one string in JavaScript? [duplicate]

I have a string array and one string. I'd like to test this string against the array values and apply a condition the result - if the array contains the string do "A", else do "B". ...
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What does -D_XOPEN_SOURCE do/mean?

...age for each function you call. For example, man strdup says: Feature Test Macro Requirements for glibc (see feature_test_macros(7)): strdup(): _SVID_SOURCE || _BSD_SOURCE || _XOPEN_SOURCE >= 500 strndup(), strdupa(), strndupa(): _GNU_SOURCE Which means that you should put o...
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Most efficient conversion of ResultSet to JSON?

...probably going to make this pretty fast since it's just branches and basic tests. You could probably make it more elegant with a HashMap lookup to a callback but I doubt it would be any faster. As to memory, this is pretty slim as is. Somehow I doubt this code is actually a critical bottle neck fo...
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Spring Boot Rest Controller how to return different HTTP status codes?

... Just as comment, i did a test 15 minutes ago, and a '@RestController' without the '@ResponseBody' annotation over his method placed the string returned not inside the body but as ForwardedURL. I'm pretty noob with spring/springboot my self so can't p...
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How to create a self-signed certificate for a domain name for development?

... is a wildcard certificate you'll need to specify a hostname) Click OK and test it out. share | improve this answer | follow | ...
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Fixing “Lock wait timeout exceeded; try restarting transaction” for a 'stuck" Mysql table?

...ar, cartesian product, ...) very numerous records to edit complex joins or tests (MD5, substrings, LIKE %...%, etc.) data structure problem foreign key model (chain/loop locking) misindexed data As @syedrakib said, it works but this is no long-living solution for production. Beware : doing the re...
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Executing a command stored in a variable from PowerShell

...the system path. $cmd = '7z.exe' $prm = 'a', '-tzip', 'c:\temp\with space\test1.zip', 'C:\TEMP\with space\changelog' & $cmd $prm If the command is known (7z.exe) and only parameters are variable then this will do $prm = 'a', '-tzip', 'c:\temp\with space\test1.zip', 'C:\TEMP\with space\chang...
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Rolling or sliding window iterator?

... = win.append for e in it: append(e) yield win In my tests it handily beats everything else posted here most of the time, though pillmuncher's tee version beats it for large iterables and small windows. On larger windows, the deque pulls ahead again in raw speed. Access to ind...
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How to remove convexity defects in a Sudoku square?

...sudoku board stands straight, otherwise height/width (or vice versa) ratio test will most probably fail and you will not be able to detect edges of sudoku. (I also want to add that if lines that are not perpendicular to the image borders, sobel operations (dx and dy) will still work as lines will st...