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C#: Abstract classes need to implement interfaces?

...de implementations of all members of the interfaces that are listed in the base class list of the class. However, an abstract class is permitted to map interface methods onto abstract methods." https://msdn.microsoft.com/en-us/library/Aa664595(v=VS.71).aspx ...
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Label points in geom_point

...e_y_continuous(expand = expand_scale(mult = c(0.1, .1))) + theme_classic(base_size = 16) Edit: To use ggrepel with lines, see this and this. Created on 2019-05-01 by the reprex package (v0.2.0). share | ...
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Can scripts be inserted with innerHTML?

... You could Base64 encode your trigger-image as <img src="data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7"> (this will not do a network request) Actually... you do NOT need an image, reference a non-e...
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How do I delete rows in a data frame?

... data may change in the future. A general principle of a data.frame or database tables is that the order of the rows should not matter. If the order does matter, this should be encoded in an actual variable in the data.frame. For example, imagine you imported a dataset and deleted rows by numeric...
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HTTP 401 - what's an appropriate WWW-Authenticate header value?

...n expiry when Basic Auth is used. I assume you're using some form of Forms based authentication. From recollection, Windows Challenge Response uses a different scheme and different arguments. The trick is that it's up to the browser to determine what schemes it supports and how it responds to them...
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Install a Windows service using a Windows command prompt?

... answered Jul 26 '12 at 0:29 Base33Base33 2,80122 gold badges2323 silver badges2828 bronze badges ...
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How to get current time and date in Android

... @Kyle Yes, it's based on the device time settings/timezone. Quote from the doc: "Calendar's getInstance method returns a calendar whose locale is based on system settings and whose time fields have been initialized with the current date and ...
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Filtering Pandas DataFrames on dates

... If date column is the index, then use .loc for label based indexing or .iloc for positional indexing. For example: df.loc['2014-01-01':'2014-02-01'] See details here http://pandas.pydata.org/pandas-docs/stable/dsintro.html#indexing-selection If the column is not the index ...
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How to “properly” create a custom object in JavaScript?

... is terrible and serves up some kind of in-between compromise to cover all bases, leaving you very confused. (Probably the author is also confused. JavaScript's object model is very different to most programming languages, and in many places straight-up badly designed.) Let's start with the prototy...
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Iterate over the lines of a string

... 1000 loops, best of 3: 406 usec per loop not quite as good as the .find based approach -- still, worth keeping in mind because it might be less prone to small off-by-one bugs (any loop where you see occurrences of +1 and -1, like my f3 above, should automatically trigger off-by-one suspicions -- ...