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Why does base64 encoding require padding if the input length is not divisible by 3?
...racters?
Padding characters help satisfy length requirements and carry no meaning.
Decimal Example of Padding:
Given the arbitrary requirement all strings be 8 characters in length, the number 640 can meet this requirement using preceding 0's as padding characters as they carry no meaning, "0000...
Naming conventions for abstract classes
...abstract class is predominantly used like an interface. Probably what they mean by Public API.
The point is that there are cases where there is no better alternative to using the Base suffix.
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Git merge errors
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It's worth understanding what those error messages mean - needs merge and error: you need to resolve your current index first indicate that a merge failed, and that there are conflicts in those files. If you've decided that whatever merge you were trying to do was a bad idea...
What is the MIME type for Markdown?
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By "funny characters" you mean the characters the vast majority of the world uses to communicate on a daily basis.
– keegan
Oct 24 '12 at 18:46
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How to customize the background/border colors of a grouped table view cell?
...anges to the backgroundView's position var don't affect reused cells. That means long tables will have incorrectly drawn cell.backgroundViews given their positions.
To fix this without having to create a new backgroundView every time a row is displayed, call [cell.backgroundView setNeedsDisplay] at...
Guards vs. if-then-else vs. cases in Haskell
...const v
Function f -> map f
Guards complement case..of expressions, meaning that if you need to make complicated decisions depending on a value, first make decisions depending on the structure of your input, and then make decisions on the values in the structure.
handle ExitSuccess = return...
Best way to convert IList or IEnumerable to Array
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can you explain your answer and also what you mean by you feel like you're reinventing the wheel?
– ChrisCamp
Jun 6 '13 at 20:03
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Multiple inheritance for an anonymous class
...e.addWindowListener( new WindowAdapter() { // extends class
} );
If you mean whether you can implement 2 or more interfaces, than I think that's not possible. You can then make a private interface which combines the two. Though I cannot easily imagine why you would want an anonymous class to have...
What is the difference between .map, .every, and .forEach?
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@EugeneMercer By "original item" I mean the original value of each element of the array.
– gilly3
May 21 '18 at 19:34
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Efficiently convert rows to columns in sql server
... from yourtable
group by ColumnName, id
order by id
FOR XML PATH(''), TYPE
).value('.', 'NVARCHAR(MAX)')
,1,1,'')
set @query = N'SELECT ' + @cols + N' from
(
select value, Column...