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Remove by _id in MongoDB console

... new for the ObjectId. Also, note that in some drivers/tools, remove() is now deprecated and deleteOne or deleteMany should be used instead. share | improve this answer | fo...
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MySQL get the date n days ago as a timestamp

...B will do part of it depending on what you want mysql> SELECT DATE_SUB(NOW(), INTERVAL 30 day); 2009-06-07 21:55:09 mysql> SELECT TIMESTAMP(DATE_SUB(NOW(), INTERVAL 30 day)); 2009-06-07 21:55:09 mysql> SELECT UNIX_TIMESTAMP(DATE_SUB(NOW(), INTERVAL 30 day)); 1244433347 ...
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Java: Date from unix timestamp

...ent the specified number of milliseconds since the standard base time known as "the epoch", namely January 1, 1970, 00:00:00 GMT. share | improve this answer | follo...
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Semantic Issue: Property's synthesized getter follows Cocoa naming convention for returning 'owned'

... to synthesize it in the .m file (I have done this before with no issues). Now, I came across this: "Semantic Issue: Property's synthesized getter follows Cocoa naming convention for returning 'owned' objects." ...
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Python decorators in classes

... Thanks Michael, only now saw that this is what I wanted. – hcvst Jan 18 '11 at 16:05 2 ...
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Generic deep diff between two objects

...d to format diff object in arbitrary way based on passed primitive values (now this job is done by "compareValues" method). var deepDiffMapper = function () { return { VALUE_CREATED: 'created', VALUE_UPDATED: 'updated', VALUE_DELETED: 'deleted', VALUE_UNCHANGED: 'unchanged', ...
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How to implement a queue with three stacks?

... SUMMARY O(1) algorithm is known for 6 stacks O(1) algorithm is known for 3 stacks, but using lazy evaluation which in practice corresponds to having extra internal data structures, so it does not constitute a solution People near Sedgewick have confirm...
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Multiple variables in a 'with' statement?

...ng contextlib.nested: Deprecated since version 2.7: The with-statement now supports this functionality directly (without the confusing error prone quirks). See Rafał Dowgird's answer for more information. share ...
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How can I filter a date of a DateTimeField in Django?

...n't work with datetimefields. The second alternative works ;). If someone knows another method please answer – Xidobix Aug 23 '09 at 4:14 ...
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How to retrieve a module's path?

I want to detect whether module has changed. Now, using inotify is simple, you just need to know the directory you want to get notifications from. ...