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Avoid synchronized(this) in Java?
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This is very dangerous. You've now introduced a client-side (user's of this class) lock ordering requirement. If two threads are calling method1() and method2() in a different order, they are likely to deadlock, but the user of this class has no idea that...
Is there a way to include commas in CSV columns without breaking the formatting?
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Now THIS should be the accepted answer as it proposes a great solution that likely solves 99% of use cases.
– BuZz
Jul 19 '18 at 8:51
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Why C# implements methods as non-virtual by default?
...f" argument. From programmers?!
It seems to me like the coder who didn't know enough (or have enough time) to design their library for inheritance and/or extensibility is the coder who's produced exactly the library I'm likely to have to fix or tweak - exactly the library where the ability to overr...
Return first N key:value pairs from dict
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This answer is no longer correct. Python dicts now preserve insertion order, and this is explicitly documented.
– Konrad Rudolph
Sep 22 at 12:30
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Storing JSON in database vs. having a new column for each key
...a types and the support in PostgreSQL was in its infancy. Since 5.7, MySQL now supports a JSON data type (in a binary storage format), and PostgreSQL JSONB has matured significantly. Both products provide performant JSON types that can store arbitrary documents, including support for indexing specif...
Is it good style to explicitly return in Ruby?
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def plus_one_to_y(x)
@y = x + 1
puts "In plus_one_to_y"
end
Now the function is broken if anything expects a returned value. If nothing expects a returned value, it's fine. Clearly if somewhere further down the code chain, something calling this is expecting a returned value, it's g...
Difference between one-to-many and many-to-one relationship
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Maybe database relationships now?
– fragorl
Jul 27 '17 at 1:00
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jQuery hasClass() - check for more than one class
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Just now noticed that I have 4 id="hello" elements there. Fixed version in order to make validators happy: jsbin.com/uqoku/2/edit
– Matchu
Feb 6 '10 at 22:38
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ArrayIndexOutOfBoundsException when using the ArrayList's iterator
Right now, I have a program containing a piece of code that looks like this:
8 Answers
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MySQL vs MongoDB 1000 reads
..., with many indexes needed to ensure relational integrity between tables.
Now consider the same design with a document store. If all of those related tables are subordinate to the main table (and they often are), then you might be able to model the data such that the entire entity is stored in a si...