Getting Clojure »

Learning Clojure involves much more than just learning the mechanics of the language. To really get Clojure you need to understand the ideas underlying this structure of framework and features. You need this book: an accessible introduction to Clojure that focuses on the ideas behind the language as well as the practical details of writing code.

Functional Web Development with Elixir, OTP, and Phoenix »

Build a stateful web app with Elixir, OTP, and Phoenix. Model domain entities without an ORM or a database. Manage server state and keep your code clean with OTP Behaviours. Layer on a Phoenix web interface without coupling it to the business logic. Open doors to powerful new techniques that will get you thinking about web development in fundamentally new ways.

Recently Released:

• Simplifying JavaScript 
• Complex Network Analysis in Python 
• Release It! Second Edition 
• Programming Elixir ≥ 1.6 

The year is off to a fresh, fast start. Are you ready?

Behind every programming language lies a vision of how programs should be built. The vision behind Clojure is of a radically simple language framework holding together a sophisticated collection of programming features. But despite that simplicity, learning Clojure can be frustrating. You need to "get" Clojure to be effective. Start with Getting Clojure: Build Your Functional Skills One Idea at a Time now in beta from pragprog.com/book/roclojure.

Elixir and Phoenix are generating tremendous excitement as an unbeatable platform for building modern web applications. For decades OTP has helped developers create incredibly robust, scalable applications with unparalleled uptime. Put it all together with Functional Web Development with Elixir, OTP, and Phoenix, now in print and shipping from pragprog.com/book/lhelph.

Either way, come and get 'em and start building better software in 2018.

/\ndy

Getting Clojure: Build Your Functional Skills One Idea at a Time

Clojure attracts developers on the cutting edge and is arguably the best language for learning to program in the functional style without compromise. But this comes with a steep learning curve. Getting Clojure directly addresses this by teaching you how to think functionally as it teaches you the language. You’ll learn about Clojure’s powerful data structures and high-level functions, but you’ll also learn what it means for a language to be functional, and how to think in Clojure’s functional way.

Each chapter of Getting Clojure takes a feature or two or three from the language, explains the syntax and the mechanics behind that feature so that you can make it work before digging into the deeper questions: What is the thinking behind the feature? And how does it fit in with the rest of the language? In Getting Clojure you'll learn Clojure's very simple syntax, but you'll also learn why that syntax is integral the way the language is constructed. You'll discover that most data structures in Clojure are immutable, but also why that leads to more reliable programs. And you'll see how easy it is to write Clojure functions and also how you can use those functions to build complex and capable systems.

With real-world examples of how working Clojure programmers use the language, Getting Clojure will help you see the challenges of programming through the eye of experienced Clojure developers.

Now available in beta from pragprog.com/book/roclojure.

Functional Web Development with Elixir, OTP, and Phoenix: Rethink the Modern Web App

Elixir and OTP provide exceptional tools to build rock-solid back-end applications that scale. In this book, you'll build a web application in a radically different way, with a back end that holds application state. You'll use persistent Phoenix Channel connections instead of HTTP's request-response, and create the full application in distinct, decoupled layers.

In Part 1, start by building the business logic as a separate application, without Phoenix. Model the application domain with Elixir functions and simple data structures. By keeping state in memory instead of a database, you can reduce latency and simplify your code. In Part 2, add in the GenServer Behaviour to make managing in-memory state a breeze. Create a supervision tree to boost fault tolerance while separating error handling from business logic.

Phoenix is a modern web framework you can layer on top of business logic while keeping the two completely decoupled. In Part 3, you'll do exactly that as you build a web interface with Phoenix. Bring in the application from Part 2 as a dependency to a new Phoenix project. Then use ultra-scalable Phoenix Channels to establish persistent connections between the stateful server and a stateful front-end client.

You're going to love this way of building web apps!

Now in print and shipping from pragprog.com/book/lhelph.

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