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Best way to require all files from a directory in ruby?
What's the best way to require all files from a directory in ruby ?
11 Answers
11
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How can I clear event subscriptions in C#?
... Delegate.RemoveAll valid for MulticastDelegate: public delegate string TableNameMapperDelegate(Type type);public static TableNameMapperDelegate TableNameMapper; ?
– Kiquenet
Aug 5 at 9:29
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Logger slf4j advantages of formatting with {} instead of string concatenation
Is there any advantage of using {} instead of string concatenation?
5 Answers
5
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What is an optional value in Swift?
...or no value. Optionals are written by appending a ? to any type:
var name: String? = "Bertie"
Optionals (along with Generics) are one of the most difficult Swift concepts to understand. Because of how they are written and used, it's easy to get a wrong idea of what they are. Compare the optional ab...
How can prepared statements protect from SQL injection attacks?
...l commands, it will not be executed. Also, if the id is a number, then the string content will generate a report or value zero.
– Soley
Sep 7 '15 at 11:24
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What does an exclamation mark mean in the Swift language?
...wn as forced unwrapping of the optional’s value:
Example
let possibleString: String? = "An optional string."
print(possibleString!) // requires an exclamation mark to access its value
// prints "An optional string."
let assumedString: String! = "An implicitly unwrapped optional string."
print...
Is there any advantage of using map over unordered_map in case of trivial keys?
...(1) vs. O(log n) ). Most times I use a map, I use either int or std::string as the key type; hence, I've got no problems with the definition of the hash function. The more I thought about it, the more I came to realize that I can't find any reason of using a std::map over a std::unordered_...
Is memcached a dinosaur in comparison to Redis? [closed]
...choice may depend on the degree to which your application can leverage the extra data manipulation functionality in Redis.
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Why do we need a pure virtual destructor in C++?
...meter(const N_Configuration::Parameter& aParam);
std::map<std::string, std::string> m_Parameters;
};
struct NumericsParams : IParams
{
NumericsParams(const ModelConfiguration& aNumericsConf);
virtual ~NumericsParams();
double dt() const;
double ti() const;
do...
When is del useful in python?
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One place I've found del useful is cleaning up extraneous variables in for loops:
for x in some_list:
do(x)
del x
Now you can be sure that x will be undefined if you use it outside the for loop.
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