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std::wstring VS std::string
...to understand the differences between std::string and std::wstring . I know wstring supports wide characters such as Unicode characters. I have got the following questions:
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Decimal number regular expression, where digit after decimal is optional
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Thanks Pete, well spotted. The answer has now been corrected, by adding extra parenthesis so it behaves as intended. It is now written like ^A?(B|C)$. Previously, it was written like ^A?B|C$ which actually means (^A?B)|(C$) which was incorrect. Note: ^(A?B|C)$ is als...
Default value of function parameter
...uments have to form a contiguous group at the end of the parameter list.
Now, keeping that in mind, in C++ you are allowed to "grow" the set of parameters that have default arguments from one declaration of the function to the next, as long as the above requirements are continuously satisfied.
Fo...
What is stdClass in PHP?
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I hope you know that object isn't the derived class of "all" objects in Python... At least, not until you are forced to derive from object in Python 3.0
– monokrome
Sep 21 '10 at 23:35
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How to Correctly handle Weak Self in Swift Blocks with Arguments
...e closure use [weak self].
If self will never be nil in the closure use [unowned self].
If it's crashing when you use [unowned self] I would guess that self is nil at some point in that closure, which is why you had to go with [weak self] instead.
I really liked the whole section from the manual...
How can I close a buffer without closing the window?
...isplay (:sp) and then select a different buffer to display in each window. Now I want to close one of the buffers, yet I don't want the window to close (After the closing it can display the next buffer on the list or an empty buffer, it doesn't matter). How can I do this?
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push multiple elements to array
...s not work to add the 2nd array to the first. It will create a new one. I know it is similar. The spread operator is what I was looking for. Just look at the other answers and comments there for details.
– BluE
Feb 27 at 7:55
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How to “log in” to a website using Python's Requests module?
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I know you've found another solution, but for those like me who find this question, looking for the same thing, it can be achieved with requests as follows:
Firstly, as Marcus did, check the source of the login form to get thre...
How to do ToString for a possibly null object?
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C# 6.0 Edit:
With C# 6.0 we can now have a succinct, cast-free version of the orignal method:
string s = myObj?.ToString() ?? "";
Or even using interpolation:
string s = $"{myObj}";
Original Answer:
string s = (myObj ?? String.Empty).ToString();
or
strin...
How to drop all tables in a SQL Server database?
...K
Then, either save to file, clipboard, or new query window.
Run script.
Now, this will drop everything, including the database. Make sure to remove the code for the items you don't want dropped. Alternatively, in the "Choose Objects" section, instead of selecting to script entire database just se...