Titlebook: Raku Recipes; A Problem-Solution A J.J. Merelo Book 2020 J.J. Merelo 2020 Perl 6.code.source.programming.language.open source.step by step.

酷热

轻而薄

Modules,mplemented in many different ways in Raku. Once they are implemented, we encourage you to release your modules to the ever-growing (in size and awesomeness) Raku ecosystem, so that others can benefit from what you have done.

新字

Dealing with Errors,t the misunderstanding is, and up to a point, figure out what the application was expecting. Designing . (we will call them errors, for the sake of brevity, when we mean misunderstandings) and the messages they deliver is a big part of getting an application or module just right. In this chapter, we focus precisely on this.

CHOIR

Working with Data Sources,their own APIs, but it’s convenient to have abstract layers that allow you to focus on your business logic and not worry about specific data access languages. Raku offers different ways of interfacing with all kinds of databases, but also has a very nice object relational manager called RED. You will learn how to use them in this chapter.

arabesque

仲裁者

机制

Speeding Up Processing,speed up programming. Raku, having been designed in the 21. Century, includes a whole array of capabilities to leverage hardware parallel-processing capabilities. We’ll look at several ways of doing that in this chapter.

可触知

Fun One-Liners,ven rise to a whole lot of simple scripts that are powerful, albeit sometimes illegible in other languages. However, Raku strives for expressivity, so it’s much easier to understand them and create them with Raku.

飞来飞去真休

Allodynia

Math,e. By implementing operators using their Unicode glyph, you will find that Raku code is closer to math than it is to other languages. By its functional nature, Raku functions can also work as pure functions (applications) and thus the data flow can be seen more clearly in Raku code.