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@Nullable annotation usage
...cause I am dealing with uncontrollable third parties like API callers, database records, former programmers etc... so I am paranoid and defensive in approaches. Since you are on Java8 or later there is a bit cleaner approach than an if block.
public String foo(@Nullable String mayBeNothing) {
re...
Scala type programming resources
... is ineffective.
The trick is to use implicit functions and values. The base case is usually an implicit value and the recursive case is usually an implicit function. Indeed, type-level programming makes heavy use of implicits.
Consider this example (taken from metascala and apocalisp):
sealed ...
How to redirect Valgrind's output to a file?
... for help, clarification, or responding to other answers.Making statements based on opinion; back them up with references or personal experience.To learn more, see our tips on writing great answers.
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Entity Framework - Code First - Can't Store List
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This answer is based on the ones provided by @Sasan and @CAD bloke.
Works only with EF Core 2.1+ (not .NET Standard compatible)(Newtonsoft JsonConvert)
builder.Entity<YourEntity>().Property(p => p.Strings)
.HasConversion(
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Understanding reference counting with Cocoa and Objective-C
...track of how many times it is being referenced (specifically, the NSObject base class implements this). By calling retain on an object, you are telling it that you want to up its reference count by one. By calling release, you tell the object you are letting go of it, and its reference count is de...
Why does csvwriter.writerow() put a comma after each character?
... but you get the above output.
To correct this, you could split the value based on whitespace (I'm assuming that's what you want)
csvwriter.writerow(JD.split())
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What is the difference between MySQL Server and MySQL Client
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The mysql server package will install the mysql database server which you can interact with using a mysql client. You can use the mysql client to send commands to any mysql server; on a remote computer or your own.
The mysql server is used to persist the data and provide a qu...
Difference between CLOB and BLOB from DB2 and Oracle Perspective?
...h as images,videos,voice or mixed media. CLOB intended to retain character-based data.
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Undo VS 'Exclude from project'?
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Open Graph namespace declaration: HTML with XMLNS or head prefix?
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