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How to make a class conform to a protocol in Swift?

...aSource' Is expected. You will get the error until your class implements all required methods of the protocol. So get coding :) share | improve this answer | follow ...
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Scala @ operator

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How do you get a timestamp in JavaScript?

...nd it returns the timestamp (without any alteration). Details: On almost all current browsers you can use Date.now() to get the UTC timestamp in milliseconds; a notable exception to this is IE8 and earlier (see compatibility table). You can easily make a shim for this, though: if (!Date.now) { ...
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Difference between a theta join, equijoin and natural join

... A theta join allows for arbitrary comparison relationships (such as ≥). An equijoin is a theta join using the equality operator. A natural join is an equijoin on attributes that have the same name in each relationship. Additionally,...
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How do you iterate through every file/directory recursively in standard C++?

... If using the Win32 API you can use the FindFirstFile and FindNextFile functions. http://msdn.microsoft.com/en-us/library/aa365200(VS.85).aspx For recursive traversal of directories you must inspect each WIN32_FIND_DATA.dwFileAttributes to ...
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How to spread django unit tests over multiple files?

... you run your tests, the default behavior of the test utility is to find all the test cases (that is, subclasses of unittest.TestCase) in any file whose name begins with test, automatically build a test suite out of those test cases, and run that suite. From Django 1.6 documentation, Tes...
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Fix warning “Capturing [an object] strongly in this block is likely to lead to a retain cycle” in AR

...as such – Benjamin Nov 24 '14 at 10:32 add a comment  |  ...
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Omit rows containing specific column of NA

...# 2 2 10 33 EDIT: Only return rows with no NAs If you want to eliminate all rows with at least one NA in any column, just use the complete.cases function straight up: DF[complete.cases(DF), ] # x y z # 2 2 10 33 Or if completeFun is already ingrained in your workflow ;) completeFun(DF, na...
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Is there an Eclipse line-width marker?

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Print all properties of a Python Class [duplicate]

...rint for example in order of declaration, and you do not want to do it manually, check this – Matteo A Aug 14 '15 at 8:41 ...