Xcode 6.0 GM (Golden Master) is the version released before 6.0, and it can be used to build & submit to App Store, which is not possible with other betas. This is necessary because apps should, ideally, be updated before a new iOS is officially released. Waiting for the official new Xcode would be too … Read more
It is a euphemism for the graphical framework and elements surrounding the content, and thus means different things depending on the context. In the context of a web browser it is the navigation, toolbar etc. In the context of a website it is navigation, ad-space and other fixed aspects of the design. The term “user … Read more
As I known. The shift command is come from the binary bit shift [1]. for Example. 001100 0 < 011000 // when you shift left | Yay! I think it is quite simple it is just like you push it from behind. So this makes sense for me. The unshift is the opposite way of … Read more
The primary key is a column in a table. The primary key needs a unique value, which needs to come from somewhere. The sequence is a feature by some database products which just creates unique values. It just increments a value and returns it. The special thing about it is: there is no transaction isolation, … Read more
I learned that depth and height are properties of a node: The depth of a node is the number of edges from the node to the tree’s root node.A root node will have a depth of 0. The height of a node is the number of edges on the longest path from the node to … Read more
“helper function” is not a term that you would find in a standard, neither it has an exact definition… standard mentions “helper class” or “helper template” few times to refer to a class, which is not meant to be instantiated by end-users but it provides an useful functionality internally used within another class. Helper functions … Read more
In my eyes, an Adapter and a Shim would be the same. A Facade on the other hand serves a different purpose. If you expect your client code to need to be able to pull back the curtain, so to speak, and access the underlying library without using your object model, that would be a … Read more
Based on the variety of answers, Class “attributes”, “fields”, and “variables” are used relatively interchangeably but have nuanced distinctions that vary from person to person. As such, probably best to lump them together and not rely on the nuances. There’s consensus that a Class “member” includes methods as well as data, so it is distinct … Read more
Domain-Driven Design defines a Service as: A SERVICE is an operation offered as an interface that stands alone in the model, without encapsulating state… [p. 105] Yes, it’s a class with public methods, but in addition to that, it implements an interface that exposes those methods. At its core, the Service is the interface – … Read more
Tags mark the start and end of an element. <foo> — start tag </foo> — end tag <foo></foo> — element See the specification: Each XML document contains one or more elements, the boundaries of which are either delimited by start-tags and end-tags, or, for empty elements, by an empty-element tag. See also section 5 of … Read more