C++ redeclaration of loop count variable inconsistent behaviour?

According to the standard specification: 1 … names declared in the for-init-statement are in the same declarative-region as those declared in the condition 3 If the for-init-statement is a declaration, the scope of the name(s) declared extends to the end of the for-statement. [ยง6.5.3] and 4 Names declared in the for-init-statement, the for-range-declaration, and in … Read more

Spring Service default scope

Which is the default scope of a Spring 4 @Service? The default scope is singleton It is reasonable to design a Service implementation in order to store some info, related to the current logged user (according to the current HTTP session) Yes. In that case, the service will have to have the scope “session”. See … Read more

What happens when JavaScript variable name and function name is the same?

Functions are a type of object which are a type of value. Values can be stored in variables (and properties, and passed as arguments to functions, etc). A function declaration: Creates a named function Creates a variable in the current scope with the same name as the function (unless such a variable already exists) Assigns … Read more

Creating master-detail pages for entities, how to link them and which bean scope to choose

What is the correct usage of session scope Use it for session scoped data only, nothing else. For example, the logged-in user, its settings, the chosen language, etcetera. See also: How to choose the right bean scope? And every time I visit the page, the product list will be created from the latest entries in … Read more