大约有 40,000 项符合查询结果（耗时：0.0394秒） [XML]
What does {0} mean when initializing an object?
...
What's happening here is called aggregate initialization. Here is the (abbreviated) definition of an aggregate from section 8.5.1 of the ISO spec:
An aggregate is an array or a class with no user-declared constructors, no private or protected non...
How do I create an array of strings in C?
...ar *a[2];
a[0] = "blah";
a[1] = "hmm";
When you do it like this you will allocate an array of two pointers to const char. These pointers will then be set to the addresses of the static strings "blah" and "hmm".
If you do want to be able to change the actual string content, the you have to do some...
Java's Interface and Haskell's type class: differences and similarities?
...d say that an interface is kind of like a type class SomeInterface t where all of the values have the type t -> whatever (where whatever does not contain t). This is because with the kind of inheritance relationship in Java and similar languages, the method called depends on the type of object th...
Method Syntax in Objective-C
...I on the iPhone) is being returned. From my understanding, the Method is called ' pickerView ', and returns an NSInteger.
...
javascript set a variable if undefined
... x === 'undefined') ? your_default_value : x;
On newer browsers it's actually safe to write:
var x = (x === undefined) ? your_default_value : x;
but be aware that it is possible to subvert this on older browsers where it was permitted to declare a variable named undefined that has a defined val...
Using the field of an object as a generic Dictionary key
...s true), that they have the same hash-code. For example, you might "return FooID;" as the GetHashCode() if you want that as the match. You can also implement IEquatable<Foo>, but that is optional:
class Foo : IEquatable<Foo> {
public string Name { get; set;}
public int FooID {ge...
(Deep) copying an array using jQuery [duplicate]
...y an (ordered, not associative) array of objects. I'm using jQuery. I initially tried
8 Answers
...
How can I split a JavaScript string by white space or comma?
... @Bergi: Well, it's both more strict than what I suggest (only one comma allowed, in front) and more loose (split on all whitespace) than what the OP asked for. IMHO it would be simply worse -- consider the input spaces , before commas.
– Jon
Apr 27 '12 at 7:...
Private module methods in Ruby
...itten) to do this is by creating a class within the module that deals with all the logic, and the module just provides a convenient method, e.g.
module GTranslate
class Translator
def perform( text ); translate( text ); end
private
def translate( text )
# do some private stuff...
Why does flowing off the end of a non-void function without returning a value not produce a compiler
...C++ 6.6.3/2 is not the same in C.
gcc will give you a warning if you call it with -Wreturn-type option.
-Wreturn-type Warn whenever a function is defined with a return-type that
defaults to int. Also warn about any
return statement with no return-value
in a function whose return-type ...