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ActionCable was available for Rails 4.x, and was bundled into Rails 5. It allows easy use of websockets for realtime communication between server and client.

Approach with sealed trait and case objects is preferred because Scala enumeration has a few problems: Enumerations have the same type after erasure. Compiler doesn't complain about “Match is not exhaustive", if case is missed it will fail in runtime scala.MatchError: def isWeekendWith...

You can create package.json with npm init which will ask you about basic facts about your projects, including license identifier.

Android Marshmallow introduced Runtime Permission model. Permissions are categorized into two categories i.e. Normal and Dangerous Permissions. where dangerous permissions are now granted by the user at run time. From sdk 23 Android requires runtime permissions for permissions on devices runni...

Random number generation in C++ is provided by the <random> header. This header defines random devices, pseudo-random generators and distributions. Random devices return random numbers provided by operating system. They should either be used for initialization of pseudo-random generators or...

ParameterDescriptiontitleThe UIBarButtonItem titlestyleThe style of the UIBarButtonItemtargetThe object to receive the UIBarButtonItem actionactionThe selector (method) to be performed when the UIBarButtonItem is pressed Referencing self.navigationItem assumes that the UIViewController is embedde...

This code will turn off the capability for a user to hold down the Shift key when opening a database to skip the default form opening and allow the user access to the Navigation Pane and VB Editor. In DB’s that you do not want users to have access to either of these (along with disabling the use ...

A set is a collection of items which can be anything. Whatever operator we need to work on these sets are in short the set operators and the operation is also known as set operation. Basic set operation includes Union, Intersection as well as addition, subtraction, etc. Group-Object Gr...

The global.json file is extremely powerful and unique to .NET Core and ASP.NET Core applications.