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What is the “__v” field in Mongoose
I'm using Mongoose version 3 with MongoDB version 2.2. I've noticed a __v field has started appearing in my MongoDB documents. Is it something to do with versioning? How is it used?
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What is the lifetime of a static variable in a C++ function?
...oo");
}
int main(int argc, char*[])
{
foo(argc != 2);
if (argc == 3)
foo(false);
}
Output:
C:>sample.exe
Created in foo
Destroyed in foo
C:>sample.exe 1
Created in if
Created in foo
Destroyed in foo
Destroyed in if
C:>sample.exe 1 2
Created in foo
Created in if
Destroyed...
break out of if and foreach
...how many loop structures it should break. Example:
foreach (array('1','2','3') as $a) {
echo "$a ";
foreach (array('3','2','1') as $b) {
echo "$b ";
if ($a == $b) {
break 2; // this will break both foreach loops
}
}
echo ". "; // never reached!
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Submitting a multidimensional array via POST with php
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3 Answers
3
Active
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Can I redirect the stdout in python into some sort of string buffer?
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from cStringIO import StringIO # Python3 use: from io import StringIO
import sys
old_stdout = sys.stdout
sys.stdout = mystdout = StringIO()
# blah blah lots of code ...
sys.stdout = old_stdout
# examine mystdout.getvalue()
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Android: how to make an activity return results to the activity which calls it?
...1
hauron
3,94833 gold badges2929 silver badges4747 bronze badges
answered Feb 9 '13 at 7:24
KanthKanth
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How to change line width in ggplot?
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131
Whilst @Didzis has the correct answer, I will expand on a few points
Aesthetics can be set or ...
Getting a 'source: not found' error when using source in a bash script
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3 Answers
3
Active
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How can I make a multipart/form-data POST request using Java?
In the days of version 3.x of Apache Commons HttpClient, making a multipart/form-data POST request was possible ( an example from 2004 ). Unfortunately this is no longer possible in version 4.0 of HttpClient .
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