declaration

This question already has an answer here: Self-references in object literals / initializers 23 answers I recently tried to create an object like this: var carousel = { $slider: $('#carousel1 .slider'), panes: carousel.$slider.children().length }; My intentions were to improve jQuery's selector performance by caching the results of $('#carousel1 .slider') in an object property, and to keep the code concise and relatively DRY. However, this didn't work. When the code executed, it threw an exception when trying to parse the value of panes , complaining that carousel was undefined. This makes

I have been writing java for a while, and today I encountered the following declaration: public static void main(String... args) { } Note the "dot dot dot" in the array declaration, rather than the usual bracket []. Clearly it works. In fact I wrote a small test and verified it works. So, I pulled the java grammar to see where this syntax of argument declaration is, but did not find anything. So to the experts out there, how does this work? Is it part of the grammar? Also, while I can declare function like this, I can't declare an array within a function's body like this. Anyway, do you know

Possible Duplicate: C++: Easiest way to initialize an STL vector with hardcoded elements I want to initialize a vector like we do in case of an array. Example int vv[2] = {12, 43}; But when I do it like this, vector<int> v(2) = {34, 23}; OR vector<int> v(2); v = {0, 9}; it gives an error: expected primary-expression before ‘{’ token AND error: expected ‘,’ or ‘;’ before ‘=’ token respectively. With the new C++ standard (may need special flags to be enabled on your compiler) you can simply do: std::vector<int> v { 34,23 }; // or // std::vector<int> v = { 34,23 }; Or even: std::vector<int> v(2);

This question already has an answer here: What does it mean to “program to an interface”? 32 answers This is a real beginner question (I'm still learning the Java basics). I can (sort of) understand why methods would return a List<String> rather than an ArrayList<String>, or why they would accept a List parameter rather than an ArrayList. If it makes no difference to the method (i.e., if no special methods from ArrayList are required), this would make the method more flexible, and easier to use for callers. The same thing goes for other collection types, like Set or Map. What I don't

I have a lot question marks tolling above my head. What I don't get is before xcode 4.3 I needed to declare forward declarations (for private methods) in my implementation file. Like in my .m file: // deleting this with xcode 4.3 the below code still does work // in previous versions i had to put this because otherwise the compiler can't find methodFirst @interface DetailViewController () - (void)methodFirst; - (void)methodSecond; @end @implementation DetailViewController - (void) methodSecond { // if i delete the forward declaration now adays i dont get a compiler error that he cant find

This question follows this other question about C declarations . Reading the answer to this question, I read about the spiral rule and I also understood what "declaration follows usage" means. Ok so far. But then I read this declaration : char *(*(*a[N])())(); and I was wondering how to parse it with the "declaration follows usage" 'rule'. Especially for the array part. What I read is: (*(*a[N])()) is a function () returning a char * , then, dereferencing the following (*a[N])() // 1 is this 'function returning a char* ', and so 1 is a 'pointer to a function returning char * ' then I would say