Crystal is for Ruby programmers who want more performance, or for
developers who enjoy working in a high-level scripting environment.
Crystal combines native execution speed and concurrency with Ruby-like
syntax, so you will feel right at home. This book, the first available
on Crystal, shows you how to write applications that have the beauty and
elegance of a modern language, combined with the power of types and
modern concurrency tooling. Now you can write beautiful code that runs
faster, scales better, and is a breeze to deploy.
Crystal is elegant to read and easy to program like Ruby, allowing full
object-oriented development. Its compiler is powerful enough to nearly
always infer the type of your variables. So you get the benefits of a
statically typed language: more robust code, safety and execution speed,
while still reaching high productivity in development. Null pointer
exceptions as in JavaScript, Java or C#, are a thing of the past:
Crystal annihilates them, just like Rust.
Explore the building blocks and design of the language, and how you can
use the Crystal tool-chain to build and manage powerful applications.
Harness the power of the macro system, as well as how to work with
fibers and channels, making concurrency as easy as possible. Learn how
to use the Kemal web framework and access databases, and how to tap the
potential of existing Crystal libraries. Find the spot that Crystal
fills in today's software world with real-world examples.
With Crystal, you can combine the best of both worlds: the high-level
coding of dynamic languages, and the safety and blazing performance of a
natively compiled language.
What You Need:
To develop in Crystal, you only need Crystal v 0.26 the latest version,
a common text editor and a browser.
