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How to use Json.Decode to create custom decoders, for example decoding into union types and user defined data types

Unit testing is a level in software testing that validates the behavior and correctness of units of code. In C++, "units of code" often refer to either classes, functions, or groups of either. Unit testing is often performed using specialized "testing frameworks" or "testin...

The keyword decltype can be used to get the type of a variable, function or an expression.

Delphi language provide 3 types of loop for - iterator for fixed sequence over integer, string, array or enumeration repeat-until - quit condition is checking after each turn, loop executing at minimum once tmeeven while do - do condition is checking before each turn, loop could be never executed...

It starts to become difficult when we think clojurescript as a functionally pure language, that holds state for it UI components. It is simply, not possible. However, it is possible to separate out individual components as well as their states. We can do it by storing data/state in reagent/atom. Bu...

This section provides an overview of what drupal-8 is, and why a developer might want to use it. It should also mention any large subjects within drupal-8, and link out to the related topics. Since the Documentation for drupal-8 is new, you may need to create initial versions of those related t...

The structure of nodejs project is influenced by the personal preferences, project's architecture and module injection strategy being used.Also on event based arc' which uses dynamic module instantiation mechanism. To have a MVC structure it is imperative to separate out the server side and client ...

This section provides an overview of what hybris is, and why a developer might want to use it. It should also mention any large subjects within hybris, and link out to the related topics. Since the Documentation for hybris is new, you may need to create initial versions of those related topics....

If you want to routinely apply an R analysis to a lot of separate data files, or provide a repeatable analysis method to other people, an executable R script is a user-friendly way to do so. Instead of you or your user having to call R and execute your script inside R via source(.) or a function ca...

This section provides an overview of what xcode8 is, and why a developer might want to use it. It should also mention any large subjects within xcode8, and link out to the related topics. Since the Documentation for xcode8 is new, you may need to create initial versions of those related topics....

If you want to use the <includeAll> tag in your changelog and expect it to find the relative changelog through the classloader of your wildfly application server, you may hit some issue as the Virtual file system wildfly uses produces URLs that are not properly processed by the ClassLoaderReso...

Wordpress is a widely used CMS for creating simple information websites but also for creating more sophisticated websites and even small webshops. Wordpress makes use of themes. These themes are used for creating the lay-out and content functionality of a Wordpress website. The themes can be found ...

This section provides an overview of what task-parallel-library is, and why a developer might want to use it. It should also mention any large subjects within task-parallel-library, and link out to the related topics. Since the Documentation for task-parallel-library is new, you may need to cre...

AngularJS has been totally rewritten using the TypeScript language and renamed to just Angular. There is a lot that can be done to an AngularJS app to ease the migration process. As the official upgrade guide says, several "preparation steps" can be performed to refactor your app, making ...

The ZipFile class lives in the System.IO.Compression namespace. It can be used to read from, and write to Zip files. You can also use a MemoryStream instead of a FileStream. Exceptions ExceptionConditionArgumentExceptionThe stream has already been closed, or the capabilities of t...

Google App Engine(GAE) is a Platform as a Service(PaaS) offering on Google Cloud Platform, which abstracts away the infrastructure so that you focus on your web application code. App Engine handles both automatic scaling up and down of instances on-demand for your web application based on the numbe...

Some frequently asked questions about the version numbers in iText. Why do the version numers jump from 2 to 5, and from 5 to 7? There are several reasons for skipping version numbers. In 2009, the version number of iText (Java) and iTextSharp (C#) were not in sync. The Java version was at ver...

This section provides an overview of what graph-theory is, and why a developer might want to use it. It should also mention any large subjects within graph-theory, and link out to the related topics. Since the Documentation for graph-theory is new, you may need to create initial versions of tho...