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How to read environment variables in Scala
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237
Since Scala 2.9 you can use sys.env for the same effect:
scala> sys.env("HOME")
res0: Strin...
How to merge dictionaries of dictionaries?
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return a
# works
print(merge({1:{"a":"A"},2:{"b":"B"}}, {2:{"c":"C"},3:{"d":"D"}}))
# has conflict
merge({1:{"a":"A"},2:{"b":"B"}}, {1:{"a":"A"},2:{"b":"C"}})
note that this mutates a - the contents of b are added to a (which is also returned). if you want to keep a you could call it like m...
Reading a delimited string into an array in Bash
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339
In order to convert a string into an array, please use
arr=($line)
or
read -a arr <<...
What does static_assert do, and what would you use it for?
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83
Off the top of my head...
#include "SomeLibrary.h"
static_assert(SomeLibrary::Version > 2, ...
How can I generate a self-signed certificate with SubjectAltName using OpenSSL? [closed]
...le I am generating the csr for the certificate, my guess is I have to use v3 extensions of OpenSSL x509.
I am using :
1 Ans...
Is there a __CLASS__ macro in C++?
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edited Nov 3 '09 at 11:55
answered Nov 3 '09 at 11:44
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What's the algorithm to calculate aspect ratio?
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203
I gather you're looking for an usable aspect ratio integer:integer solution like 16:9 rather tha...
SQL Server : Columns to Rows
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indicatorvalue
for indicatorname in (Indicator1, Indicator2, Indicator3)
) unpiv;
Note, the datatypes of the columns you are unpivoting must be the same so you might have to convert the datatypes prior to applying the unpivot.
You could also use CROSS APPLY with UNION ALL to convert the col...
How to find a hash key containing a matching value
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answered Sep 25 '10 at 13:43
Daniel VandersluisDaniel Vandersluis
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