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Best way to require all files from a directory in ruby?
...ure will not be loaded if its name already appears in $". The file name is converted to an absolute path, so "require 'a'; require './a'" will not load a.rb twice. ruby-doc.org/core/classes/Kernel.html#M001418
– Derek
Jan 29 '11 at 17:47
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Remove characters from C# string
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Am I the only one who gets "Argument 2: cannot convert from 'string' to 'char'" om string.Empty?
– OddDev
Oct 25 '16 at 16:25
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New Array from Index Range Swift
...you have to cast your Slice to an array:
func aFunction(numbers: Array<Int>, position: Int) -> Array<Int> {
var newNumbers = Array(numbers[0..<position])
return newNumbers
}
// test
aFunction([1, 2, 3], 2) // returns [1, 2]
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Consistency of hashCode() on a Java string
... a Java application, the hashCode method must consistently return the same integer, provided no information used in equals comparisons on the object is modified. This integer need not remain consistent from one execution of an application to another execution of the same application.
EDIT
Since...
Closure in Java 7 [closed]
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Here is Neal Gafter's blog one of the pioneers introducing closures in Java. His post on closures from January 28, 2007 is named A Definition of Closures On his blog there is lots of information to get you started as well as videos. An here is an excellent Google talk - A...
Is there a method that calculates a factorial in Java?
... for this one to reuse?
I could use such a method with standard types (Eg. int, long...) and with BigInteger / BigDecimal, too.
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When to use IList and when to use List
I know that IList is the interface and List is the concrete type but I still don't know when to use each one. What I'm doing now is if I don't need the Sort or FindAll methods I use the interface. Am I right? Is there a better way to decide when to use the interface or the concrete type?
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How do C++ class members get initialized if I don't do it explicitly?
...pile error if you do not explicitly initialize it.
For primitive types (pointers, ints, etc), they are not initialized -- they contain whatever arbitrary junk happened to be at that memory location previously.
For references (e.g. std::string&), it is illegal not to initialize them, and your c...
Square retrofit server mock for testing
...new Retrofit.Builder()
// Using custom Jackson Converter to parse JSON
// Add dependencies:
// com.squareup.retrofit:converter-jackson:2.0.0-beta2
.addConverterFactory(JacksonConverterFactory.crea...
What is a NullReferenceException, and how do I fix it?
... different meanings:
Object variables which are uninitialized and hence point to nothing. In this case, if you access properties or methods of such objects, it causes a NullReferenceException.
The developer is using null intentionally to indicate there is no meaningful value available. Note that C#...