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Can anyone explain IEnumerable and IEnumerator to me? [closed]
...tor yourself, since Array already does this. E.g. foreach(Car c in carLot.getCars()) { ... }
– Nick Rolando
Jun 27 '19 at 19:57
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Difference between DTO, VO, POJO, JavaBeans?
...licitly define an assembly phase where all data to be used by the view is fetched and marshalled into the DTOs before returning control to the presentation tier.
So, for many people, DTOs and VOs are the same thing (but Fowler uses VOs to mean something else as we saw). Most of time, they follow...
to drawRect or not to drawRect (when should one use drawRect/Core Graphics vs subviews/images and wh
...rtz does random-access of pixels and shares the CPU with networking, audio etc. Also, if you have several elements that you draw using Quartz at the same time, you have to re-draw all of them when one changes, then upload the whole chunk, while if you change one image and then let UIViews or CALayer...
How can I selectively escape percent (%) in Python strings?
...3.6. It will continue to be supported in lieu of its similarity to c, c++, etc. str.format() and f-strings are preferred but not enforced.
– Aaron
Apr 7 '17 at 21:02
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Safe integer parsing in Ruby
...f the string matches a pattern first. Like the /\d+/ regular expressions, etc.
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Class method differences in Python: bound, unbound and static
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where
self is the CPO (it could be an instance of list, str, function etc) and is supplied by the runtime
instance is the instance of the class where this CPO is defined (the object 'c' above) and needs to be explicity supplied by us
owner is the class where this CPO is defined(the class object...
How does password salt help against a rainbow table attack?
...gainst entry A, then "md5(salt[b] . attempt[0])", compare against entry B, etc. Now I have n times as much work to do, where n is the number of usernames and passwords contained in the file.
To understand the second one, you have to understand what a rainbow table is. A rainbow table is a large lis...
log all sql queries
...ies generated by a given page. As well as stacktraces of where they occur etc.
EDIT: to log all SQL queries to a file etc, then you will want to create some middleware. Middleware gets run on every request. There are several Django snippets out there for this sort of thing:
http://djangosnippe...
Is there a typical state machine implementation pattern?
...&data );
// do other program logic, run other state machines, etc
}
}
This can of course be extended to support multiple state machines, etc. Transition actions can be accommodated as well:
typedef void transition_func_t( instance_data_t *data );
void do_initial_to_foo( instance...
What is default color for text in textview?
... Most correct solution. Preserve text color states (disabled, etc)
– dasar
Jan 11 '17 at 12:02
From my ob...