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Why is “Set as Startup” option stored in the suo file and not the sln file?
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This is a problem when using a build server because it would require checking the suo into version control to set the correct Startup project and checking the suo into version control is a bad idea.
– markshancock
Sep 30 '15 at 16:2...
Unable to find valid certification path to requested target - error even after cert imported
I have a Java client trying to access a server with a self-signed certificate.
10 Answers
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What does .SD stand for in data.table in R
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.SD stands for something like "Subset of Data.table". There's no significance to the initial ".", except that it makes it even more unlikely that there will be a clash with a user-defined column name.
If this is your data.table:
DT = data.table(x=rep(c("a","b","c"),each=2), y=c(1,3), v=1:6)
set...
Can someone explain the right way to use SBT?
...te often find projects that include everything and the kitchen sink
For Scala-based dependencies, I would go with what the authors recommend. For instance: http://code.google.com/p/scalaz/#SBT indicates to use:
libraryDependencies += "org.scalaz" %% "scalaz-core" % "6.0.4"
Or https://github.com...
What is the difference between trie and radix trie data structures?
...x tree takes less memory, but it is harder to implement. Otherwise the use case of both is pretty much the same.
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Logical operators for boolean indexing in Pandas
... Use a.empty, a.any() or a.all().
when used as a boolean value. That's because its unclear when it should be True or False. Some users might assume they are True if they have non-zero length, like a Python list. Others might desire for it to be True only if all its elements are True. Others might ...
IOException: read failed, socket might closed - Bluetooth on Android 4.3
...tiate a fallback BluetoothSocket, similar to the source code below. As you can see, invoking the hidden method createRfcommSocket via reflections. I have no clue why this method is hidden. The source code defines it as public though...
Class<?> clazz = tmp.getRemoteDevice().getClass();
Class&...
What's the difference between eval, exec, and compile?
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The short answer, or TL;DR
Basically, eval is used to evaluate a single dynamically generated Python expression, and exec is used to execute dynamically generated Python code only for its side effects.
eval and exec have these two differences:
eval acce...
How to style the option of an html “select” element?
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There are only a few style attributes that can be applied to an <option> element.
This is because this type of element is an example of a "replaced element". They are OS-dependent and are not part of the HTML/browser. It cannot be styled via CSS.
There are rep...
What characters are valid for JavaScript variable names?
Which characters can be used for naming a JavaScript variable?
12 Answers
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