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How to test if a string is basically an integer in quotes using Ruby
...> false
I don't agree with the solutions that provoke an exception to convert the string - exceptions are not control flow, and you might as well do it the right way. That said, my solution above doesn't deal with non-base-10 integers. So here's the way to do with without resorting to exception...
Appending an element to the end of a list in Scala
...stant factors are ignored for asymptotic complexities. I think the List is converted to a ListBuffer, the element is appended, and the ListBuffer converted back (pretty much like String and StringBuilder in Java), but that's just a guess.
– Landei
Aug 9 '13 at ...
Checking a Python module version at runtime
...ersion__ the following is ugly but works:
#!/usr/bin/env python3.6
import sys
import os
import subprocess
import re
sp = subprocess.run(["pip3", "show", "numpy"], stdout=subprocess.PIPE)
ver = sp.stdout.decode('utf-8').strip().split('\n')[1]
res = re.search('^Version:\ (.*)$', ver)
print(res.group...
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...
any tool for java object to object mapping? [closed]
I am trying to convert DO to DTO using java and looking for automated tool before start writing my own. I just wanted to know if there any free tool available for the same.
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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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Reading a List from properties file and load with spring annotation @Value
...Service();
}
This activates the new configuration service which supports converting String to Collection types.
If you do not activate this configuration service, Spring falls back on its legacy property editors as configuration services, which do not support this kind of conversion.
Converting t...
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(...