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How to remove a field completely from a MongoDB document?
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There's no longer a comment by a "Nic Cottrell" anywhere on this page :)
– Dan Dascalescu
Dec 19 '18 at 6:42
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How to export all collections in MongoDB?
I want to export all collections in MongoDB by the command:
26 Answers
26
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What do the different readystates in XMLHttpRequest mean, and how can I use them?
...the request is not initialized. After that, any other "completion" (either by success or error) will update the readystate to 4. So losing internet after the transfer starts will flip it to 4, not back to 0. If there has never been internet when the transfer is attempted, it should still be at 0; it...
Is there an online name demangler for C++? [closed]
...mangle ref qualifiers for Itanium. I am looking at _ZNR4test1fEv generated by Clang.
– Puppy
Jun 20 '14 at 20:53
Thank...
How can I make robocopy silent in the command line except for progress?
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I did it by using the following options:
/njh /njs /ndl /nc /ns
Note that the file name still displays, but that's fine for me.
For more information on robocopy, go to http://technet.microsoft.com/en-us/library/cc733145%28WS.10%29...
How to show all parents and subclasses of a class in IntelliJ IDEA?
...hortcut mapped to <Escape> (instead of the "Escape" shortcut), which by default is mapped to <Shift+Escape>. So far it felt way more natural to me when closing "floating windows" (type hierarchy included).
– Eyal Roth
Nov 19 '15 at 18:12
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What is the difference between “long”, “long long”, “long int”, and “long long int” in C++?
... character, or other non-integer type. In many cases, this can be inferred by the compiler, so it can be dropped--This is why "unsigned" is the same as "unsigned int", for example. The "int" part is simply assumed unless the programmer specifies something else, such as "char" or "double". As for the...
PHP date() format when inserting into datetime in MySQL
...ere's an alternative solution: if you have the date in PHP as a timestamp, bypass handling it with PHP and let the DB take care of transforming it by using the FROM_UNIXTIME function.
mysql> insert into a_table values(FROM_UNIXTIME(1231634282));
Query OK, 1 row affected (0.00 sec)
mysql> sel...
converting Java bitmap to byte array
When I look at the buffer after the call to copyPixelsToBuffer the bytes are all 0... The bitmap returned from the camera is immutable... but that shouldn't matter since it's doing a copy.
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Python Nose Import Error
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for me nosetests was cached by bash to the system one in /usr/local/bin (while which nosetests was giving the proper result). I used this to clear it.
– Raffi
Nov 20 '15 at 10:20
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