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Two way/reverse map [duplicate]
...pe by subclassing dict and adding the logic that you want. Here's a basic example:
class TwoWayDict(dict):
def __setitem__(self, key, value):
# Remove any previous connections with these values
if key in self:
del self[key]
if value in self:
del s...
how to get request path with express req object
I'm using express + node.js and I have a req object, the request in the browser is /account but when I log req.path I get '/' --- not '/account'.
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Efficient SQL test query or validation query that will work across all (or most) databases
...aries provide the ability to test their SQL connections for idleness. For example, the JDBC pooling library c3p0 has a property called preferredTestQuery , which gets executed on the connection at configured intervals. Similarly, Apache Commons DBCP has validationQuery .
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How do I create a unique ID in Java? [duplicate]
...yone (as the entire space is larger than the number of atoms estimated to exist in the Universe) as to be 100% guaranteed. And if you need global uniqueness, it is the easiest way to achieve that. However, if you only need local uniqueness (i.e. to a current existing application) then AtomicIntege...
How can I pass an argument to a PowerShell script?
...erPosition = $iTunes.PlayerPosition + $step
}
Call it with
powershell.exe -file itunesForward.ps1 -step 15
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Convert object string to JSON
...l will still do bad things in this case if the string is constructed, for example, like this: var str = "(function() {console.log(\"bad\")})()";
– Rondo
Jan 31 '15 at 1:40
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Should I use past or present tense in git commit messages? [closed]
...it messages should be in the imperative present tense, e.g. "Add tests for x". I always find myself using the past tense, e.g. "Added tests for x" though, which feels a lot more natural to me.
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Go install fails with error: no install location for directory xxx outside GOPATH
...'t part of your $GOPATH.
You can either:
Define $GOPATH to your $HOME (export GOPATH=$HOME).
Move your source to within the current $GOPATH (mv ~/src/go-statsd-client /User/me/gopath).
After either, going into the go-statsd-client directory and typing go install will work, and so will typing go...
Ruby function to remove all white spaces?
...acters (space, newline, tab). The // surrounding show that it's a regular expression.
– dylanfm
Jul 27 '11 at 12:26
3
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Is there a replacement for unistd.h for Windows (Visual C)?
I'm porting a relatively simple console program written for Unix to the Windows platform ( Visual C++ 8.0 ). All the source files include "unistd.h", which doesn't exist. Removing it, I get complaints about misssing prototypes for 'srandom', 'random', and 'getopt'.
I know I can replace the random f...