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What is a higher kinded type in Scala?
... -> *
Order 2: Functor :: (* -> *) -> Constraint—higher-kinded: converts unary type constructors to typeclass constraints
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Ignoring accented letters in string comparison
... it doesn't handle all accented letters, for example ð, ħ and ø are not converted to o, h and o respectively. Is there any way to handle these as well?
– Avrohom Yisroel
Aug 2 '17 at 14:07
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How to solve PHP error 'Notice: Array to string conversion in…'
...n that expects a string like: echo or print, then the PHP interpreter will convert your array to the literal string Array, throw this Notice and keep going. For example:
php> print(array(1,2,3))
PHP Notice: Array to string conversion in
/usr/local/lib/python2.7/dist-packages/phpsh/phpsh.php(...
Nullable types and the ternary operator: why is `? 10 : null` forbidden? [duplicate]
...DbType.Double).Value = String.IsNullOrEmpty(pNumberChar) ? (Double?)null : Convert.ToDouble(pNumberChar);
– Rajesh Thampi
Feb 9 '17 at 7:00
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Fastest way to convert Image to Byte array
...d Compress it and Send it to the receiver. To compress the image I need to convert it to a byte[].
6 Answers
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SQL Server: Get data for only the past year
...ost readable, IMO:
SELECT * FROM TABLE WHERE Date >
DATEADD(yy, -1, CONVERT(datetime, CONVERT(varchar, GETDATE(), 101)))
Which:
Gets now's datetime GETDATE() = #8/27/2008 10:23am#
Converts to a string with format 101 CONVERT(varchar, #8/27/2008 10:23am#, 101) = '8/27/2007'
Converts to a d...
printf() formatting for hex
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¶6 The flag characters and their meanings are:
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# The result is converted to an "alternative form". ... For x (or X)
conversion, a nonzero result has 0x (or 0X) prefixed to it. ...
(Emphasis added.)
Note that using %#X will use upper-case letters for the hex digits and 0X as the pr...
How to get the integer value of day of week
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Try this. It will work just fine:
int week = Convert.ToInt32(currentDateTime.DayOfWeek);
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When would I need a SecureString in .NET?
...g a Chicken-and-Egg problem, so even though most current scenarios require converting them back into regular strings to make any use of them at all, their existence in the framework now means better support for them in the future - at least to a point where your program doesn't have to be the weak l...
Calculating Pearson correlation and significance in Python
...n is defined on a 2xN matrix. There is no generally applicable method that converts two dictionaries into a 2xN matrix, but you might use the array of pairs of dictionary values corresponding to the keys of the intersection of the keys of your dictionaries.
– winerd
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