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How to copy an object in Objective-C
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I got an error: No visible @interface for 'NSObject' declares the selector 'copyWithZone:'. I guess this is only required when we are inheriting from some other custom class that implements copyWithZone
– Sam
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How do I squash two non-consecutive commits?
...ocal, you will get There is no tracking information for the current branch error when rebasing. In this case you need to specify the number of commits you want to work with, like this: git rebase -i HEAD~4. See this answer.
– johndodo
May 16 '18 at 10:55
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How do I get the current time zone of MySQL?
...------------------+
| tstamp |
+---------------------+
| 2010-05-29 08:31:59 |
+---------------------+
1 row in set (0.00 sec)
mysql> set time_zone = '+02:00';
Query OK, 0 rows affected (0.00 sec)
mysql> select tstamp from foo;
+---------------------+
| tstamp |
+--...
Rails: Default sort order for a rails model?
...he block is evaluated at runtime. If you don't use a block you'll get this error:
Support for calling #default_scope without a block is removed. For example instead of default_scope where(color: 'red'), please use default_scope { where(color: 'red') }. (Alternatively you can just redefine self.d...
How are parameters sent in an HTTP POST request?
...guages will probably handle this for you. The exception to this is the 415 error. No framework can predict which content-types your application chooses to support and/or not support. This is up to you.
PUT (relevant RFC section)
A PUT request is pretty much handled in the exact same way as a POST ...
Python speed testing - Time Difference - milliseconds
...me.datetime.now()
>>> delta = b - a
>>> print delta
0:00:05.077263
>>> int(delta.total_seconds() * 1000) # milliseconds
5077
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Named regular expression group “(?Pregexp)”: what does “P” stand for?
... as the
extension syntax. ? immediately after a parenthesis was a syntax error
because the ? would have nothing to repeat, so this didn’t introduce
any compatibility problems. The characters immediately after the ?
indicate what extension is being used, so (?=foo) is one thing (a
positiv...
How to get the return value from a thread in python?
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On python3 this returns TypeError: __init__() takes from 1 to 6 positional arguments but 7 were given . Any way to fix that?
– GuySoft
Oct 30 '16 at 15:20
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python dataframe pandas drop column using int
...data frame
– Sai Kiran
May 28 at 14:05
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NHibernate ISession Flush: Where and when to use it, and why?
...nScope
I don't fully understand why on this one, but Flush() prevented my error from happening.
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