In common with most modern programming languages, Raku is designed to support parallelism, asynchronicity and concurrency. Parallelism is about doing multiple things at once. Asynchronous programming, which is sometimes called event driven or reactive programming, is about supporting changes in the program flow caused by events triggered elsewhere in the program. Finally, concurrency is about the coordination of access and modification of some shared resources.| docs.raku.org
In Raku, pragmas are directive used to either identify a specific version of Raku to be used or to modify the compiler's normal behavior in some way. The use keyword enables a pragma (similar to how you can use a module). To disable a pragma, use the no keyword:| docs.raku.org
In Failure§| docs.raku.org
Exceptions in Raku are objects that hold information about errors. An error can be, for example, the unexpected receiving of data or a network connection no longer available, or a missing file. The information that an exception object stores is, for instance, a human-readable message about the error condition, the backtrace of the raising of the error, and so on.| docs.raku.org
Raku highlighting| docs.raku.org
Raku highlighting| docs.raku.org
Lists have been a central part of computing since before there were computers, during which time many devils have taken up residence in their details. They were actually one of the hardest parts of Raku to design, but through persistence and patience, Raku has arrived with an elegant system for handling them.| docs.raku.org
Variables are symbolic names for values or containers. Variable declarations or assignment of values may create a container on the fly. Variable names can start with or without a special character called a sigil, followed optionally by a second special character named twigil and then an identifier.| docs.raku.org