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Why is a 3-way merge advantageous over a 2-way merge?
...and see that the first and last lines are different. But how would it know what to do with the differences? Should the merged version include the first line? Should it include the last line?
With a three-way merge, it can compare the two files, but it can also compare each of them against the origi...
What are detached, persistent and transient objects in hibernate?
What are detached, persistent and transient objects in hibernate? Please explain with an example.
5 Answers
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System.Timers.Timer vs System.Threading.Timer
...reading.Timer is as good as it gets in the framework.
I'm not fully clear what the supposed 'not thread safe' issues with System.Threading.Timer are. Perhaps it is just same as asked in this question: Thread-safety of System.Timers.Timer vs System.Threading.Timer, or perhaps everyone just means tha...
Format output string, right alignment
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Shorter for sure, I don't know what cleaner really means, but 'easier to read' is just because it's familiar, I think. If you're not already familiar with one of them, the new format seems easier to read. ".format" for string formatting certainly seems mor...
Windows API Code Pack: Where is it? [closed]
...do I wish to speculate (maybe someone else closer to the issue can tell us what happened), but thankfully it's not completely gone. It looks like the binaries have been reuploaded to NuGet by other developers, although note that none of the packages are official ones from Microsoft.
The following p...
How does UTF-8 “variable-width encoding” work?
... enough code-points in it that you need 4 bytes to store them all. That's what the UTF-32 encoding does. Yet the UTF-8 encoding somehow squeezes these into much smaller spaces by using something called "variable-width encoding".
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How to check if a value exists in an array in Ruby
...se, :downcase
# etc
]
def foo(what)
raise "Not allowed" unless ALLOWED_METHODS.include?(what.to_sym)
bar.send(what)
end
A quick test reveals that calling include? on a 10 element Set is about 3.5x faster than calling it on the equivalent Array (if ...
How can I make SQL case sensitive string comparison on MySQL?
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This is exactly what I was looking for. I would it up higher if I could. A question though, what effect does this have on performance? I'm using it on a limited reporting thing, so it's not important in my case, but I am curious.
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Why do we have map, fmap and liftM?
...map exists to simplify operations on lists and for historical reasons (see What's the point of map in Haskell, when there is fmap?).
You might ask why we need a separate map function. Why not just do away with the current
list-only map function, and rename fmap to map instead? Well, that’s ...
How do I loop through a list by twos? [duplicate]
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what about about float value? I got error that integer argument expected, got float
– Kevin Patel
Mar 5 at 10:48
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