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How to call a parent class function from derived class function?
... example, I have a class called parent , and a class called child which is derived from parent. Within
each class there is a print function. In the definition of the child's print function I would like to make a call to the parents print function. How would I go about doing this?
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What is setup.py?
Can anyone please explain what setup.py is and how it can be configured or used?
10 Answers
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rsync: difference between --size-only and --ignore-times
I'm trying to understand what the difference is between two options
4 Answers
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E11000 duplicate key error index in mongodb mongoose
Following is my user schema in user.js model -
25 Answers
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C++ Redefinition Header Files (winsock2.h)
How do I prevent from including header files twice? The problem is I'm including the in MyClass.h and then I'm including MyClass.h in many files, so it includes multiple times and redefinition error occurs. How to prevent?
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Cannot create an NSPersistentStoreCoordinator with a nil model
...xactly the same error message as the original post. I was wrestling with this for hours.
It was this line in my AppDelegate.m.
NSURL *modelURL = [[NSBundle mainBundle] URLForResource:@"[same with name of xcdatamodeld]" withExtension:@"momd"];
For anyone out there searching this error message and ...
MySQL and GROUP_CONCAT() maximum length
... rows into a single string.
However, the maximum length of the result of this function is 1024 characters.
7 Answers
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Where can I find documentation on formatting a date in JavaScript?
I noticed that JavaScript's new Date() function is very smart in accepting dates in several formats.
35 Answers
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Save PL/pgSQL output from PostgreSQL to a CSV file
What is the easiest way to save PL/pgSQL output from a PostgreSQL database to a CSV file?
18 Answers
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What is the PostgreSQL equivalent for ISNULL()
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SELECT CASE WHEN field IS NULL THEN 'Empty' ELSE field END AS field_alias
Or more idiomatic:
SELECT coalesce(field, 'Empty') AS field_alias
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