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How can I get nth element from a list?
...ge. If you want to know more about the theory a good place to start is the readme file at the github repo.
Accessing lists and other datatypes
Getting access to the lens package
At the command line:
$ cabal install lens
$ ghci
GHCi, version 7.6.3: http://www.haskell.org/ghc/ :? for help
Loading...
Reference: mod_rewrite, URL rewriting and “pretty links” explained
...d_rewrite functionality.
All of the below examples assume that you have already included RewriteEngine On in your .htaccess file.
Rewrite Example
Lets take this example:
RewriteRule ^blog/([0-9]+)/([A-Za-z0-9-\+]+)/?$ /blog/index.php?id=$1&title=$2 [NC,L,QSA]
The rule is split into 4 secti...
What is the difference between == and equals() in Java?
...
(Thread necromancy, I know...) For Strings, == is reference equals as well, yes, but it usually works (as in two Strings with the same content will usually be == to each other), because of how Java handles Strings. It won't alw...
What is the meaning of the term arena in relation to memory?
I'm reading a book on memory as a programming concept. In one of the later chapters, the author makes heavy use of the word arena , but never defines it. I've searched for the meaning of the word and how it relates to memory, and found nothing. Here are a few contexts in which the author uses the...
Access properties file programmatically with Spring?
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CREDIT: Programmatic access to properties in Spring without re-reading the properties file
I've found a nice implementation of accessing the properties programmatically in spring without reloading the same properties that spring has already loaded. [Also, It is not required to hardcode ...
Why do we need virtual functions in C++?
...amples. This is however, simplistic, and the questioner should really just read the page parashift.com/c++-faq-lite/virtual-functions.html. Other folks have already pointed to this resource in SO articles linked from this thread, but I believe this is worth re-mentioning.
– Son...
Haskell: Lists, Arrays, Vectors, Sequences
I'm learning Haskell and read a couple of articles regarding performance differences of Haskell lists and (insert your language)'s arrays.
...
When to use setAttribute vs .attribute= in JavaScript?
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Thanks for such an detailed answer, I read a lot about DOM and inheritance like HTMLElement inherit from Element and so on, your answer makes perfect sense.
– Suraj Jain
Apr 4 '18 at 8:51
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Can I use my existing git repo with openshift?
Is it necessary to have git repo on openshift only? I already have bitbucket / github git repo and would prefer to push there only. Can I simply hook into it so that openshift gets intimation ?
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Regular cast vs. static_cast vs. dynamic_cast [duplicate]
...c_cast<MyClass*>(data);
...
}
int main() {
MyClass c;
start_thread(&func, &c) // func(&c) will be called
.join();
}
In this example, you know that you passed a MyClass object, and thus there isn't any need for a runtime check to ensure this.
dynamic_cast
dynamic_c...