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What does the exclamation mark do before the function?

...ation. You would need an invocation, foo(), to actually run the function. Now, when we add the seemingly innocuous exclamation mark: !function foo() {} it turns it into an expression. It is now a function expression. The ! alone doesn't invoke the function, of course, but we can now put () at the ...
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Convert LocalDate to LocalDateTime or java.sql.Timestamp

...ttribute(Timestamp ts) { return ts.toLocalDateTime(); } } So now it is relative timezone independent time. Additionally it is easy do: LocalDate ld = ldt.toLocalDate(); LocalTime lt = ldt.toLocalTime(); Formatting: DateTimeFormatter DATE_TME_FORMATTER = DateTimeFormatter.ofPat...
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git stash changes apply to new branch?

I was working on master branch, made some changes and then stashed them. Now, my master is at HEAD. 3 Answers ...
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NUnit isn't running Visual Studio 2010 code

... ".NET Framework 4.0". I then built the solution without any errors. I can now use the NUnit GUI app to run tests built for .NET 4.0. I've not done exhaustive testing of this build so there may be problems, but for my purposes it works fine. Update: It is not necessary to rebuild NUnit. I discovere...
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Reordering of commits

... c ... pick a ... squash d ... squash e ... squash g ... pick b squash f Now the history should look like this: c - [a+d+e+g] - [b+f] (branchA) / --o-x-x-x-x-x-x-x-x-x-x (master) Now, let's grab the newly-squashed commit b+f for branchB. git checkout branchB git cherry-pick branchA # c...
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arrow operator (->) in function heading

...ifier ( argument-declarations... ) -> return_type They are equivalent. Now when they are equivalent, why do you ever want to use the latter? Well, C++11 introduced this cool decltype thing that lets you describe type of an expression. So you might want to derive the return type from the argument...
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git:// protocol blocked by company, how can I get around that?

...$ curl http://github.com:9418 curl: (7) couldn't connect to host OK, so now we have determined it is our git port being blocked by a firewall, what can we do about it? Read on :) Basic URL Rewriting Git provides a way to rewrite URLs using git config. Simply issue the following command: git co...
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Create Directory When Writing To File In Node.js

... Node > 10.12.0 fs.mkdir now accepts a { recursive: true } option like so: // Creates /tmp/a/apple, regardless of whether `/tmp` and /tmp/a exist. fs.mkdir('/tmp/a/apple', { recursive: true }, (err) => { if (err) throw err; }); or with a prom...
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How would I create a UIAlertView in Swift?

...nil)) self.presentViewController(alert, animated: true, completion: nil) Now UIAlertController is a single class for creating and interacting with what we knew as UIAlertViews and UIActionSheets on iOS 8. Edit: To handle actions: alert.addAction(UIAlertAction(title: "OK", style: .Default, handle...
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Can I export a variable to the environment from a bash script without sourcing it?

... is to source the variable: . ./export.bash or source ./export.bash Now when echoing from main shell it works echo $VAR HELLO, VARABLE We will now reset VAR export VAR="" echo $VAR Now we will execute a script to source the variable then unset it : ./test-export.sh HELLO, VARABLE -- ...