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Logout: GET or POST?
...table answer. But today (in 2013), browsers will pre-fetch pages they "think" you will visit next.
Here is one of the StackOverflow developers talking about this issue on twitter:
I'd like to thank my bank for making log off a GET request, and the Chrome team for handy URL prefetching.- Nick Cr...
Difference between solr and lucene
I know that Lucene and Solr are 2 differents Apache projects that are made to work together, but I don't understand what is the aim of each project.
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Has anyone actually implemented a Fibonacci-Heap efficiently?
...anyone of you ever implemented a Fibonacci-Heap ? I did so a few years back, but it was several orders of magnitude slower than using array-based BinHeaps.
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Why git can't do hard/soft resets by path?
...ng thing by accident.
A "hard reset" for a path is just done with git checkout HEAD -- <path> (checking out the existing version of the file).
A soft reset for a path doesn't make sense.
A mixed reset for a path is what git reset -- <path> does.
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Expansion of variables inside single quotes in a command in Bash
...y are only used to disable interpretation of various special characters, like whitespace, $, ;... For a good tutorial on quoting see Mark Reed's answer. Also relevant: Which characters need to be escaped in bash?
Do not concatenate strings interpreted by a shell
You should absolutely avoid buildin...
Get type of a generic parameter in Java with reflection
...
One construct, I once stumbled upon looked like
Class<T> persistentClass = (Class<T>)
((ParameterizedType)getClass().getGenericSuperclass())
.getActualTypeArguments()[0];
So there seems to be some reflection-magic around that I unfortunetly...
Java compile speed vs Scala compile speed
I've been programming in Scala for a while and I like it but one thing I'm annoyed by is the time it takes to compile programs. It's seems like a small thing but with Java I could make small changes to my program, click the run button in netbeans, and BOOM, it's running, and over time compiling in ...
How should I copy Strings in Java?
At this point, the backup variable still contains the original value "hello" (this is because of String's immutability right?).
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Should I index a bit field in SQL Server?
...low number of distinct values) is not really worth doing. I admit I don't know enough about how indexes work to understand why that is.
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Or versus OrElse
...is definitely true - so we don't need to evaluate the second term.
OrElse knows this, so doesn't try and evaluate temp = 0 once it's established that temp Is DBNull.Value
Or doesn't know this, and will always attempt to evaluate both terms. When temp Is DBNull.Value, it can't be compared to zero, ...