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The Pragmatic Programmers

Software Design X-Rays
Software Design X-Rays

Are you working on a codebase where cost overruns, death marches, and heroic fights with legacy code monsters are the norm? Battle these adversaries with novel ways to identify and prioritize technical debt, based on behavioral data from how developers work with code. And that's just for starters. Because good code involves social design, as well as technical design, you can find surprising dependencies between people and code to resolve coordination bottlenecks among teams. Best of all, the techniques build on behavioral data that you already have: your version-control system. Join the fight for better code! Use statistics and data science to uncover both problematic code and the behavioral patterns of the developers who build your software. This combination gives you insights you can't get from the code alone. Use these insights to prioritize refactoring needs, measure their effect, find implicit dependencies between different modules, and automatically create knowledge maps of yo ...
Adopting Elixir
Adopting Elixir

Adoption is more than programming. Elixir is an exciting new language, but to successfully get your application from start to finish, you're going to need to know more than just the language. You need the case studies and strategies in this book. Learn the best practices for the whole life of your application, from design and team-building, to managing stakeholders, to deployment and monitoring. Go beyond the syntax and the tools to learn the techniques you need to develop your Elixir application from concept to production. Learn real-life strategies from the people who built Elixir and use it successfully at scale. See how Ben Marx and Bleacher Report maintain one of the highest-traffic Elixir applications by selling the concept to management and delivering on that promise. Find out how Bruce Tate and icanmakeitbetter hire and train Elixir engineers, and the techniques they've employed to design and ensure code consistency since Elixir's early days. Explore customer challenges in d ...
Craft GraphQL APIs in Elixir with Absinthe
Craft GraphQL APIs in Elixir with Absinthe

Your domain is rich and interconnected, and your API should be too. Upgrade your web API to GraphQL, leveraging its flexible queries to empower your users, and its declarative structure to simplify your code. Absinthe is the GraphQL toolkit for Elixir, a functional programming language designed to enable massive concurrency atop robust application architectures. Written by the creators of Absinthe, this book will help you take full advantage of these two groundbreaking technologies. Build your own flexible, high-performance APIs using step-by-step guidance and expert advice you won't find anywhere else. GraphQL is a new way of structuring and building web services, and the result is transformational. Find out how to offer a more tailored, cohesive experience to your users, easily aggregate data from different data sources, and improve your back end's maintainability with Absinthe's declarative approach to defining how your API works. Build a GraphQL-based API from scratch using A ...
Web Development with Clojure, 2nd Edition
Web Development with Clojure, 2nd Edition

Modern web applications deserve modern tools. Harness the JVM's rich infrastructure while taking advantage of the expressive power and brisk performance of a modern functional language. Exploit Clojure's unique advantages for web development. Step by step, apply the fundamentals of programming in Clojure to build real-world, professional web applications. This edition features new libraries, tools, and best practices, and focuses on developing modern single-page applications. Stop developing web apps with yesterday's tools. Today, developers are increasingly adopting Clojure as a web-development platform. See for yourself what makes Clojure so desirable, as you create a series of web apps of growing complexity, exhibiting the full process of web development using a modern functional language. Journey through all the steps in developing a rich Picture Gallery web application - from conception to packaging and deployment. You'll work hands-on with Clojure and build real-world, profess ...
Pragmatic Guide to Sass 3
Pragmatic Guide to Sass 3

Design websites faster than ever using Sass - the most mature and popular CSS meta-language. On any platform, integrate Sass into your project, create a reusable style guide, and use maps to drastically reduce duplication in your stylesheets. You'll see how to code the right way in Sass with short, clear examples on two-page spreads that show the explanation on one side and code examples on the other. This ultimate guide to using Sass, written by its creator, is updated and expanded with all the new features found in Sass 3.4, making you an expert in no time. Sass lets you write CSS faster and more easily by enabling you to use features that regular CSS doesn't have yet. Bring the power of Sass to your projects, whether you use Node.js, Ruby, or any other programming language. This updated Pragmatic Guide gives you brief, targeted hands-on examples in an easy-to-follow modular format. Use variables to easily change color values, measurements, or fonts across a whole project. Pare ...
The VimL Primer
The VimL Primer

VimL is the scripting language of the Vim editor. If you've ever edited or saved a vimrc file, you've written VimL. And VimL can do much more than simply configure settings and specify option values—you can write entire plugins in VimL. But without a background in scripting Vim, it can be hard to know where to start. The VimL Primer gives you the tools and confidence you need. It gets you comfortable in VimL quickly, walking you through creating a working plugin that you can run yourself as you write it in Vim. You'll learn how to script common commands and buffer interaction, work with windows and buffers from within a plugin script, and how to use autocommands to have Vim recognize entirely new filetypes. You'll discover how to declare filetype-specific settings and define your own syntax elements for use with Vim's syntax highlighting. And you'll see how you can write your own command-line commands and define new mappings to call them. With this introduction to scripting Vim ...
The Cucumber for Java Book
The Cucumber for Java Book

Until now it's been difficult for teams developing Java applications to learn how to benefit from Behaviour-Driven Development (BDD). This book changes all that by describing in detail how to use Cucumber to harness the power of plain language specifications in your development process. In part 1, you'll discover how to use Cucumber's Gherkin DSL to describe the behavior your customers want from the system. You'll also learn how to write Java code that interprets those plain language specifications and checks them against your application. Part 2 guides you through a worked example, using Spring, MySQL, and Jetty. Enhanced chapters teach you how to use Selenium to drive your application and handle asynchronous Ajax calls, and new chapters cover Dependency Injection (DI) and advanced techniques to help keep your test suites fast. Part 3 shows you how to integrate Cucumber with your Continuous Integration (CI) system, work with a REST web service, and even use BDD with legacy applicat ...
Ruby Performance Optimization
Ruby Performance Optimization

You don't have to accept slow Ruby or Rails performance. In this comprehensive guide to Ruby optimization, you'll learn how to write faster Ruby code - but that's just the beginning. See exactly what makes Ruby and Rails code slow, and how to fix it. Alex Dymo will guide you through perils of memory and CPU optimization, profiling, measuring, performance testing, garbage collection, and tuning. You'll find that all those “hard” things aren't so difficult after all, and your code will run orders of magnitude faster. ...
Programming Google Glass, 2nd edition
Programming Google Glass, 2nd edition

This is your all-inclusive guidebook for programming Glassware. You'll learn the nuances of the Mirror API and the recently released GDK as you build example applications: a restaurant finder, blogging app, Glass stats monitor, party animator, QR code reader, video game, and more. You'll jump right in with a fun application that leverages the power of the Mirror API web service, Google's server-side interface for creating Glassware. You'll deploy and support users with OAuth, managing their timelines with cards and menu items. You'll create callable services for geolocation tracking, change notifications, and custom menu options. You'll also learn some optical-display design basics. In Part 2, new in this edition, you'll learn how to program a more immersive experience using the GDK, Google's extension to Android for Glass. You'll populate the Glass timeline with static and live cards, where you can richly interact with the Glass hardware. You'll create an animation application ( ...
Pragmatic Unit Testing in Java 8 with JUnit
Pragmatic Unit Testing in Java 8 with JUnit

Pragmatic Unit Testing in Java 8 With JUnit steps you through all the important unit testing topics. If you've never written a unit test, you'll see screen shots from Eclipse, IntelliJ IDEA, and NetBeans that will help you get past the hard part—getting set up and started. Once past the basics, you'll learn why you want to write unit tests and how to effectively use JUnit. But the meaty part of the book is its collected unit testing wisdom from people who've been there, done that on production systems for at least 15 years: veteran author and developer Jeff Langr, building on the wisdom of Pragmatic Programmers Andy Hunt and Dave Thomas. You won't just learn about unit testing in theory - you'll work through numerous code examples. When it comes to programming, hands-on is the only way to learn! ...
Metaprogramming Elixir
Metaprogramming Elixir

Metaprogramming is one of Elixir's greatest features. Maybe you've played with the basics or written a few macros. Now you want to take it to the next level. This book is a guided series of metaprogramming tutorials that take you step by step to metaprogramming mastery. You'll extend Elixir with powerful features and write faster, more maintainable programs in ways unmatched by other languages. You'll start with the basics of Elixir's metaprogramming system and find out how macros interact with Elixir's abstract format. Then you'll extend Elixir with your own first-class features, write a testing framework, and discover how Elixir treats source code as building blocks, rather than rote lines of instructions. You'll continue your journey by using advanced code generation to create essential libraries in strikingly few lines of code. Finally, you'll create domain-specific languages and learn when and where to apply your skills effectively. When you're done, you will have mastered m ...
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