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Why do we need boxing and unboxing in C#?
...resent their underlying data (e.g., an int is just a bucket of thirty-two bits which is completely different than a reference type).
Think of it like this. You have a variable o of type object. And now you have an int and you want to put it into o. o is a reference to something somewhere, and the i...
close vs shutdown socket?
In C, I understood that if we close a socket, it means the socket will be destroyed and can be re-used later.
9 Answers
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Rails 2.3-style plugins and deprecation warnings running task in Heroku
...tly as 2013-08, heroku always injected plugins in rails 3 apps, even apps with the recommended gems. This was an issue with the ruby buildpack, and was fixed by PR 11, merged on 2013-08-06.
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How to change the background color of a UIButton while it's highlighted?
...dSet {
backgroundColor = isHighlighted ? UIColor.black : UIColor.white
}
}
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What's the easy way to auto create non existing dir in ansible
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edited Jan 6 '16 at 19:26
answered Mar 18 '14 at 15:24
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Any reason not to start using the HTML 5 doctype? [closed]
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When serving as text/html, whether you use XHTML markup or HTML markup, it's treated by browsers as HTML.
So, really it comes down to using the shortest doctype that triggers standards mode (<!DOCTYPE html>) and using HTML markup that produces the correct result in browsers.
The rest is a...
What's the absurd function in Data.Void useful for?
...ta.Void has the following signature, where Void is the logically uninhabited type exported by that package:
6 Answers
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How does the Amazon Recommendation feature work?
...mendation is currently the best in the market, but how do they provide us with such relevant recommendations?
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How to implement WiX installer upgrade?
...f using your own.
For example, we use this code to do automatic upgrades. It prevents downgrades, giving a localised error message, and also prevents upgrading an already existing identical version (i.e. only lower versions are upgraded):
<MajorUpgrade
AllowDowngrades="no" DowngradeErrorMes...
PATH issue with pytest 'ImportError: No module named YadaYadaYada'
I used easy_install to install pytest on a mac and started writing tests for a project with a file structure likes so:
20 A...