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Android 4.2: back stack behaviour with nested fragments

With Android 4.2, the support library got support for nested fragments see here . I've played around with it and found an interesting behaviour / bug regarding back stack and getChildFragmentManager() . When using getChildFragmentManager() and addToBackStack(String name), by pressing the back butt...
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Regex to replace multiple spaces with a single space

... string.replace(/\s\s+/g, ' '); If you really want to cover only spaces (and thus not tabs, newlines, etc), do so: string = string.replace(/ +/g, ' '); share | improve this answer | ...
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numpy matrix vector multiplication [duplicate]

...(b) array([16, 6, 8]) This occurs because numpy arrays are not matrices, and the standard operations *, +, -, / work element-wise on arrays. Instead, you could try using numpy.matrix, and * will be treated like matrix multiplication. Other Solutions Also know there are other options: As no...
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Easiest way to rename a model using Django/South?

I've been hunting for an answer to this on South's site, Google, and SO, but couldn't find a simple way to do this. 4 Answ...
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Easiest way to open a download window without navigating away from the page

... 7 years have passed and I don't know whether it works for IE6 or not, but this prompts OpenFileDialog in FF and Chrome. var file_path = 'host/path/file.ext'; var a = document.createElement('A'); a.href = file_path; a.download = file_path.substr...
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Sending email with attachments from C#, attachments arrive as Part 1.2 in Thunderbird

...erver using SMTP. These arrive fine for Outlook users, but for Thunderbird and Blackberry users the attachments have been renamed as "Part 1.2". ...
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Ruby Regexp group matching, assign variables on 1 line

... Beware that if no matches are found, match returns nil and you get a NilError. If you are in Rails, I suggest you to change: one, two, three = string.match(/(^.*)(:)(.*)/i).captures into: one, two, three = string.match(/(^.*)(:)(.*)/i).try(:captures) ...
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URL to load resources from the classpath in Java

... Intro and basic Implementation First up, you're going to need at least a URLStreamHandler. This will actually open the connection to a given URL. Notice that this is simply called Handler; this allows you to specify java -Djava...
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List of encodings that Node.js supports

...ms compiling iconv I recommend iconv-lite. It does not require compilation and according to the dev is faster than iconv and it is used by popular tools like Grunt, Nodemailer, Yeoman, ... – Telémako Jan 13 '14 at 11:32 ...
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Distinct not working with LINQ to Objects

...t smart when it comes to custom objects. All it does is look at your list and see that it has two different objects (it doesn't care that they have the same values for the member fields). One workaround is to implement the IEquatable interface as shown here. If you modify your Author class like s...