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differentiate null=True, blank=True in django
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In other words, blank has no effect on the database, and null controls whether the database column allows NULL values. This answer is a really long way of saying that, and doesn't provide any useful information about blank.
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Why does C# not provide the C++ style 'friend' keyword? [closed]
The C++ friend keyword allows a class A to designate class B as its friend. This allows Class B to access the private / protected members of class A .
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What are the Web.Debug.config and Web.Release.Config files for?
...e applications configuration or the connection string is empty.
In other words, because the connection string elements are in the Release/Debug designer files and used by configuration elements in the main (Web.config) file, it is unable to resolve it.
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Should the hash code of null always be zero, in .NET
...ethods for the two object do not have to return different values
In other words: if two objects have same hash code that doesn't mean that they are equal, cause real equality is determined by Equals.
From MSDN again:
The GetHashCode method for an object must consistently return the same
h...
RESTful password reset
What is the proper way to structure a RESTful resource for resetting a password?
9 Answers
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How to write to Console.Out during execution of an MSTest test
...e test had ouput, in the detail window under the elapsed time there is the word "ouput" which is a link to a new window.
– Mike Walsh
Jul 27 '17 at 4:19
2
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std::shared_ptr thread safety explained
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This could be worded better. A std::shared_ptr<T> instance is guaranteed thread-safe when always used by value (copied/moved) across thread boundaries. All other uses, std::shared_ptr<T>& are unsafe across thread boundaries...
Adding iOS UITableView HeaderView (not section header)
...matically initialize it from the XIB and add to your UITableView. In other words, you dont have to design the ENTIRE table in IB. Just the headerView (this way the header view can be reused in other tables as well)
For example I have a custom UIView for one of my table headers. The view is managed ...
Python list iterator behavior and next(iterator)
...ng: 0
1
Printing: 2
3
Printing: 4
5
Printing: 6
7
Printing: 8
9
In other words, next() is working as expected, but because it returns the next value from the iterator, echoed by the interactive interpreter, you are led to believe that the loop has its own iterator copy somehow.
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Create RegExps on the fly using string variables
... an hour: escape any special sequences. For example, I was searching for a word starting with a certain term, so the regex I'd need is /\b[term]\B/, but when constructing it I need to call new RegExp("\\b"+ term + "\\B"). Small but important difference, and hard to spot since using it as a regex dir...