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What requirement was the tuple designed to solve?

...ff and write a class, and just want to think about what I've writing right now. Which means the signature of the Tuple may change quite a lot in the text half an hour whilst I figure out what data I am going to need for this method, and how it's returning what ever values it will return. If I get ...
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Polymorphism with gson

... RuntimeTypeAdapter is now complete, unfortunately it doesn't look like it's in Gson core yet. :-( – Jonathan Aug 14 '13 at 12:52 ...
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What is the most compatible way to install python modules on a Mac?

...d and there are some details not covered in other answers: Most people I know use HomeBrew or MacPorts, I prefer MacPorts because of its clean cut of what is a default Mac OS X environment and my development setup. Just move out your /opt folder and test your packages with a normal user Python envi...
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fetch from origin with deleted remote branches?

...realized we were advertising the "after" explicitly. So the documentation now states: Before fetching, remove any remote-tracking references that no longer exist on the remote That is because: When we have a remote-tracking branch named "frotz/nitfol" from a previous fetch, and the upstream now ...
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GroupBy pandas DataFrame and select most common value

I have a data frame with three string columns. I know that the only one value in the 3rd column is valid for every combination of the first two. To clean the data I have to group by data frame by first two columns and select most common value of the third column for each combination. ...
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How does this CSS produce a circle?

...at WD hasn't been updated in 6 years, I suspect a lot of it will be. I do know that section 11 (overflow family of properties) now lives in its own module, css-overflow-3, but that hasn't been reflected in the ED yet. You'll see plenty of issues in the ED, but I imagine it isn't an exhaustive list: ...
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Apache Spark: The number of cores vs. the number of executors

...son, but we still see a similar drop in performance when we lose threads. Now for the last bit: why is it the case that we get better performance with more threads, esp. more threads than the number of CPUs? A good explanation of the difference between parallelism (what we get by dividing up data ...
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How does the “final” keyword in Java work? (I can still modify an object.)

... I have a question. Someone I know claimed "final" also makes the variable be stored on the stack. Is this correct? I've searched everywhere and couldn't find any reference that can approve or disapprove this claim. I've searched on both Java and Android d...
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How to store a git config as part of the repository?

I'm using filters to mangle files during checkout like described here . Now the problem is that filter definition is only stored in my local configuration file: ...
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Why can't an anonymous method be assigned to var?

...<T> type that takes a ref anything. var x2 = y=>123; We don't know the type of the formal parameter, though we do know the return. (Or do we? Is the return int? long? short? byte?) var x3 = (int y)=>null; We don't know the return type, but it can't be void. The return type could be...