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How to check for an active Internet connection on iOS or macOS?

... } catch { print("Unable to start notifier") } Objective-C 1) Add SystemConfiguration framework to the project but don't worry about including it anywhere 2) Add Tony Million's version of Reachability.h and Reachability.m to the project (found here: https://github.com/tonymillion/Reachabil...
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Difference between timestamps with/without time zone in PostgreSQL

... All timezone-aware dates and times are stored internally in UTC. They are converted to local time in the zone specified by the TimeZone configuration parameter before being displayed to the client. – Guillaume Husta Apr 24 '17 at 11:27 ...
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Does disposing streamreader close the stream?

... Also, be aware that the using statement is actually converted into a try-finally block by the compiler. – Jason Kelley Aug 27 '18 at 22:51 add a comment...
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How to convert a LocalDate to an Instant?

... In a unit test I am writing, I have a LocalDate, that is converted to a com.google.protobuf.Timestamp and then mapped back to a LocalDate via an Instant, both ways. When using the approach the accepted answer suggests, I get the expected LocalDate in return, but using this approa...
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How to write to a file, using the logging Python module?

...eHandler] class=StreamHandler level=DEBUG formatter=consoleFormatter args=(sys.stdout,)# The comma is correct, because the parser is looking for args [handler_fileHandler] class=FileHandler level=DEBUG formatter=logFormatter # This causes a new file to be created for each script # Change time.strf...
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How to convert a Git shallow clone to a full clone?

... The below command (git version 1.8.3) will convert the shallow clone to regular one git fetch --unshallow Then, to get access to all the branches on origin (thanks @Peter in the comments) git config remote.origin.fetch "+refs/heads/*:refs/remotes/origin/*" git fet...
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SQL error “ORA-01722: invalid number”

... An ORA-01722 error occurs when an attempt is made to convert a character string into a number, and the string cannot be converted into a number. Without seeing your table definition, it looks like you're trying to convert the numeric sequence at the end of your values list to ...
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What's the difference between SCSS and Sass?

...lly, Sass has four syntax parsers: scss, sass, CSS, and less. All of these convert a different syntax into an Abstract Syntax Tree which is further processed into CSS output or even onto one of the other formats via the sass-convert tool. Use the syntax you like the best, both are fully supported a...
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How can I find a specific element in a List?

...blic List<DealsCategory> DealCategory { get; set; } int categoryid = Convert.ToInt16(dealsModel.DealCategory.Select(x => x.Id)); share | improve this answer | follo...
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Convert Enum to String

Which is the preferred way to convert an Enum to a String in .NET 3.5? 13 Answers 13 ...