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Rails nested form with has_many :through, how to edit attributes of join model?
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3 Answers
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Easy way to test a URL for 404 in PHP?
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edited Jan 3 '09 at 1:25
answered Jan 3 '09 at 0:56
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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...
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...
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...