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How to export all collections in MongoDB?
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Please let us know where you have installed your Mongo DB ? (either in Ubuntu or in Windows)
For Windows:
Before exporting you must connect to your Mongo DB in cmd prompt and make sure that you are able to connect to your local host. ...
append multiple values for one key in a dictionary [duplicate]
...e seen a digit associated with a year or not. You just append and forget, knowing that a missing key will always be a list. If a key already exists, then it will just be appended to.
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General guidelines to avoid memory leaks in C++ [closed]
... a look at the Boost lib, TR1, and smart pointers.
Also smart pointers are now a part of C++ standard called C++11.
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Do I need to disable NSLog before release Application?
...ingWithFormat:(s), ##__VA_ARGS__] )
#else
#define DLog( s, ... )
#endif
Now instead of NSLog use DLog everywhere. When testing and debugging, you'll get debug messages. When you're ready to release a beta or final release, all those DLog lines automatically become empty and nothing gets emitted....
Python unittest - opposite of assertRaises?
...w an error when your function crashes, but not when an exception that you know it will throw given certain inputs gets thrown when given different inputs.
– coredumperror
Jan 9 '18 at 18:41
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Javascript regex returning true.. then false.. then true.. etc [duplicate]
... end.
[a-z0-9_-]
Whether that would cause this problem or not, I don't know.
Additional notes:
The first and last characters are allowed to be any character that isn't - or _ rather than being restricted to a-z0-9
a-z0-9 doesn't include uppercase characters. You need a-zA-Z0-9 for that.
a-zA-...
Preserving signatures of decorated functions
...tian pointed out that I didn't modify args_as_ints function -- it is fixed now.
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How to find the width of a div using vanilla JavaScript?
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That, or cientWidth, altho I don't know the real difference.
– JCOC611
Jan 24 '11 at 21:51
127
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How do I write unit tests in PHP? [closed]
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* </code>
*/
function add($a,$b){
return $a + $b;
}
If you now run this file through phpdt (command-line runner of php-doctest) 1 test will be run. The doctest is contained inside the < code > block. Doctest originated in python and is fine for giving useful & runnable exam...
Difference between a theta join, equijoin and natural join
... that the resultset has six columns and only contains one column for SNO.
Now consider a theta eqijoin, where the column names for the join must be explicitly specified (plus range variables S and SP are required):
SELECT * FROM S JOIN SP ON S.SNO = SP.SNO;
The resultset will have seven columns,...