This code is fine across all platforms. The string gets compiled into the binary as a static string literal. If you are on windows for example you can even open your .exe with notepad and search for the string itself. Since it is a static string literal scope does not matter. String pooling: One thing … Read more
If your file-scope variable is not static, then you can use a declaration that uses extern in a nested scope: int c; int main() { { int c = 0; // now, c shadows ::c. just re-declare ::c in a // nested scope: { extern int c; c = 1; } // outputs 0 printf(“%d\n”, … Read more
Namespace alias in the class definition is illegal, as specified by the language specification. Its allowed in only in namespace scope or function scope. You can make an alias at the namespace scope. But this will create a permanent alias which can be used from other files as well. However, the solution is simple: you … Read more
1) Variables are visible for the whole function scope. Therefore, you should only declare them once. 2) You should not declare the variable twice in your example. I’d recommend declaring the variable at the top of the function, then just setting the value later: function actionPane(state) { var structure; if(state === “ed”) { structure = … Read more
Excuse me when I answer your questions out-of-order, it makes it easier to understand this way. When static variable is declared in a header file is its scope limited to .h file or across all units. There is no such thing as a “header file scope”. The header file gets included into source files. The … Read more
One way is to create a service with the functions you want to share across multiple controllers. See this post for more info. After you do so you can inject the service you created into any controller and access the say() function with code something like this: function TestCtrl($scope, myService){ $scope.say = myService.say; } Where … Read more
In your case, there is most likely no difference. However, generally, the difference is as follows: using A::foo; resolves A from the current scope, while using ::A::foo searches for A from the root namespace. For example: namespace A { namespace B { class C; } } namespace B { class C; } namespace A { … Read more
You can use the @Scope(value = ConfigurableBeanFactory.SCOPE_PROTOTYPE) annotation. @Service @Scope(ConfigurableBeanFactory.SCOPE_PROTOTYPE) public class CustomerService { // … } Spring API Docs. Example of the mapping. Scope annotation reference.
Long story short; goto will result is a runtime jump, variable definition/declaration will result in storage allocation, compile time. The compiler will see and decide on how much storage to allocate for an int, it will also make so that this allocated storage will be set to 3 when “hitting” i = 3;. That memory … Read more
You’re immediately calling an anonymus function with a specific parameter. An example: (function(name){ alert(name); })(‘peter’) This alerts “peter“. In the case of jQuery you might pass jQuery as a parameter and use $ in your function. So you can still use jQuery in noConflict-mode but use the handy $: jQuery.noConflict() (function($){ var obj = $(‘<div/>’, … Read more