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Explicitly select items from a list or tuple
...bad idea to invoke magic variable. programmer selects their preferred way based on programming circumstances.
– Jacob CUI
Mar 25 '15 at 22:57
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Converting 'ArrayList to 'String[]' in Java
...at having the generic type in Java isn't enough to actually create objects based on that type; not even an array (which is ridiculous, because that should work for any type). All that can be done with it, as far as I can see, is casting. In fact, to even create objects of the type, you need to have ...
Why is there “data” and “newtype” in Haskell? [duplicate]
...tructor, CAN be not evaluated at all *
Used to create higher level concept based on existing type with distinct set of supported operations or that is not interchangeable with original type (example: Meter, Cm, Feet is Double)
type - creates an alternative name (synonym) for a type (like typedef i...
What does passport.session() middleware do?
...one(err, user);
});
});
This will find the correct user from the database and pass it as a closure variable into the callback done(err,user); so the above code in the passport.session() can replace the 'user' value in the req object and pass on to the next middleware in the pile.
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Mapping a function on the values of a map in Clojure
...ue)} )))
Also, here’s an alternative implementation of map-map that is based on clojure.walk/walk instead of into, if you prefer this phrasing:
(defn map-map [f m]
(clojure.walk/walk #(apply f %) identity m) )
Parellel versions – pmap-map, etc.
There are also parallel versions of these...
C++11 features in Visual Studio 2012
... compare and exchange
Bi-directional fences
Data-dependency ordering
Range-based for loop
In early November 2012, Microsoft announced the Visual C++ Compiler November 2012 CTP, which adds more C++11 functionality to Visual Studio 2012:
uniform initialization
initializer lists
variadic templates...
convert string array to string
...@Ashwini - Wasn't trying to offend you. Just answering @davidg's question based on my experience working with different engineers.
– jmort253
Jan 30 '11 at 19:42
2
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Word wrapping in phpstorm
...hat are wrapped by the editor.
This plugin can be installed from any IDEA-based IDE by searching for Wrap to Column.
It has the additional benefit that you can choose to wrap only sections of text that you want :-)
share
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Stack vs heap allocation of structs in Go, and how they relate to garbage collection
...o and I'm experiencing a bit of congitive dissonance between C-style stack-based programming where automatic variables live on the stack and allocated memory lives on the heap and and Python-style stack-based-programming where the only thing that lives on the stack are references/pointers to objects...
When does a process get SIGABRT (signal 6)?
... an example for this.
Here when d is to be constructed, it first calls its base class A ctor,
and passes inside pointer to itself.
the A ctor calls pure virtual method before table was filled with valid pointer,
because d is not constructed yet.
#include<iostream>
using namespace std;
class ...