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What's wrong with nullable columns in composite primary keys?
...g nullable foreign keys is not clean relational database design." - a null-free database design (Sixth normal form) invariably adds complexity, the space-savings gained are often outweighed by the extra programmer work needed to realise those gains.
– Dai
May 2...
Understanding checked vs unchecked exceptions in Java
... which is often quite high, while keeping the layers in between completely free of error handling artifacts. Checked exceptions destroy exactly that advantage. Another problem is that the distinction checked/unchecked is tied to the exception class which also represents a conceptual categorization o...
How to get a reference to current module's attributes in Python
...context, which is significally different thing. Even if make a call from a free function it can return a different module global context, dependent on how the function has been imported.
– Andry
Nov 2 '19 at 15:27
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JSON and XML comparison [closed]
... mostly going to use JavaScript then you should go with JSON.
Please feel free to add pros and cons. I'm not an XML expert ;)
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What's the difference between window.location= and window.location.replace()?
...s brilliant and then I had to start debugging and demonstrate how headache free and better ES6 is. Not convincing is it.
I hope this answered your question. This being an old question it's more for the future generation, people who are still learning.
Question when people say it doesn't matter eit...
Android OpenGL ES and 2D
...le of apps you may want to put on your phone that is worth it and they are free is:
OpenGL Demo,
min3d Framework,
RedBook Sample
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What is WEB-INF used for in a Java EE web application?
...the resulting WAR file is done by a build process.
While you are usually free to design your own build process, nowadays most people will use a standardized approach such as Apache Maven. Among other things Maven defines defaults for which resources in the project structure map to what resources i...
Set up DNS based URL forwarding in Amazon Route53 [closed]
... for Website Redirects and achieving a self contained server less and thus free solution within AWS only like so.
Implementing an automated solution to generate such redirects is left as an exercise for the reader, but please pay tribute to Vivek's epic answer by publishing your solution ;)
Or...
What is the proper REST response code for a valid request but an empty data?
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@MatthewPatrickCashatt you're free to downvote as you please. I now finally understand why people are downvoting me, but the rationale is still wrong. When receiving a 404 it doesn't mean the route doesn't make sense, it means there is no resource at that...
Why doesn't RecyclerView have onItemClickListener()?
..., an Android GDE, right after RecyclerView was released. He made a licence-free class available for you to just drop in your code and use it.
It showcase some of the versatility introduced with RecyclerView by making use of RecyclerView.OnChildAttachStateChangeListener.
Edit 2019: kotlin version by ...