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How do I merge two dictionaries in a single expression in Python (taking union of dictionaries)?
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6173
How can I merge two Python dictionaries in a single expression?
For dictionaries x and y, z be...
How can I use map and receive an index as well in Scala?
...ipWithIndex.foreach{ case (e, i) => println(i+" "+e) }
0 Mary
1 had
2 a
3 little
4 lamb
From: http://www.artima.com/forums/flat.jsp?forum=283&thread=243570
You also have variations like:
for((e,i) <- List("Mary", "had", "a", "little", "lamb").zipWithIndex) println(i+" "+e)
or:
List...
How to append text to a text file in C++?
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293
You need to specify the append open mode like
#include <fstream>
int main() {
std::o...
Redirecting Output from within Batch file
...f you stage the redirection than you are guaranteed to avoid the problem.
3>File1.txt ( 4>File2.txt call :sub)
exit /b
:sub
etc.
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Manually raising (throwing) an exception in Python
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3080
How do I manually throw/raise an exception in Python?
Use the most specific Exception co...
How many String objects will be created when using a plus sign?
... String one = "1";
String two = "2";
String result = one + two + "34";
Console.Out.WriteLine(result);
}
then the compiler seems to emit the code using String.Concat as @Joachim answered (+1 to him btw).
If you define them as constants, e.g.:
const String one = "1";
const String two ...
Vertically centering Bootstrap modal window
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31 Answers
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Why is address zero used for the null pointer?
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edited May 3 '10 at 17:44
answered May 3 '10 at 17:22
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