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Entity Framework 4 Single() vs First() vs FirstOrDefault()
...where you are expecting a single record but they won't warn you if you actually get more than that single record back which could be important depending on the situation.
– Steve Willcock
Aug 14 '10 at 22:47
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How do I get out of a screen without typing 'exit'?
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yes, you generally do have a tl;dr moment with the man command. so when you have a tl;dr when doing man command_name, in this case man screen, you can generally access a shorter & pretty helpful version of the docs by --help option, ...
How to compare strings ignoring the case
...ect way for it not to complain is "Apple".casecmp("APPLE").zero? But personally I like Andres answer below, which uses .casecmp?
– 8bithero
May 29 '17 at 15:31
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Disable copy constructor
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@pauluss86 This is basically what Rust does: Move-by-default (and const-by-default). Very helpful in my opinion.
– Kapichu
Dec 31 '16 at 1:38
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Unstage a deleted file in git
Usually, to discard changes to a file you would do:
6 Answers
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How is performance affected by an unused using directive?
Visual Studio will automatically create using statements for you whenever you create a new page or project. Some of these you will never use.
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Git rebase fails, 'Your local changes to the following files would be overwritten by merge'. No loca
... git troubles.
I'm on a mac, and this obscure config change seemed to fix all my woes regarding unstaged changes when there were none.
git config --global core.trustctime false
I think it's to do with differences between windows file times, linux file times and mac file times. who knows, feel fr...
How to put an image in div with CSS?
I would like to have all my images in CSS (the only way I know how is to put them in as background images).
4 Answers
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Create objective-c class instance by name?
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id object = [[NSClassFromString(@"NameofClass") alloc] init];
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How to get UTC time in Python?
...poses when you need to calculate an amount of time spent between two dates all that you need is to substract end and start dates. The results of such substraction is a timedelta object.
From the python docs:
class datetime.timedelta([days[, seconds[, microseconds[, milliseconds[, minutes[, hours[,...