Through concrete examples and jargon-free explanations, this book teaches you how to apply functional programming to real-life development tasks. The book includes insightful comparisons to object-oriented or imperative programming, which will allow you to ease into functional design. Moreover, you'll learn a repertoire of techniques including function chaining and pipelining, recursion, currying, binding, functional composition, lazy evaluation, fluent error handling, memoization, and much more. By the end of the book, you'll think about application design in a fresh new way.About the technologyAs web developers build increasingly complex applications in JavaScript, the code base for these projects can become exponentially larger and harder to maintain. The result? Application performance suffers, and readability and extensibility are severely compromised. For applications like these, Functional Programming provides a saner approach, allowing you to write elegant, readable code that raises the level of abstraction while being less prone to errors. Although not a "pure" functional language, JavaScript's native functional capabilities unlock access to proven functional programming techniques and practices.What's insideFoundations of functional programming and designExplore JavaScript's functional programming capabilities and the functional library ecosystemCreate more reliable code by embracing immutabilityLearn to write code that's easier to reason aboutSeparate core logic from program structure to write extensible codeAdopt a new approach to error handling and testingApply functional programming to solve real-world problemsAbout the readerReaders need to be comfortable with JavaScript programming and object-oriented design. No previous experience with functional programming is required.About the authorLuis Atencio is a Staff Software Engineer for Citrix Systems in Ft. Lauderdale, FL. He develops and architects applications leveraging Java, PHP, and JavaScript platforms. Luis is very involved in the community and has presented at local meet-ups. He blogs about software engineering at luisatencio.net and writes articles for PHP magazines and DZone. Follow Luis on twitter at @luijar.

    And I mean all the time. Every day there’s a new cloud-based dating app; a new cloud-based gizmo for your house; a new cloud-based game; or a thousand other new things—all in the cloud.The cloud is everywhere! Everything is in the cloud! What does it mean! Let’s slow down. Take a deep breath. That’s good. Take another. Excellent. This book teaches you all about the cloud. I’ll let you in on a little secret: the cloud is not that hard to understand. It’s not. It’s just that nobody has taken the time to explain to you what the cloud is. They haven’t, have they?Deep down I think this is because they don’t understand the cloud either, but I do. I’ve been a programmer and writer for over 30 years. I’ve been in cloud computing since the very start, and I’m here to help you on your journey to understand the cloud. Consider me your tour guide. I’ll be with you every step of the way, but not in a creepy way.I take my time with this book. I go slow and easy, so you can build up an intuition about what the cloud really is, one idea at a time. When you finish reading, you’ll understand the cloud. When you hear someone say some new cool thing is in the cloud, you’ll understand exactly what they mean. That’s a promise. How do I deliver on that promise? I use lots and lots of pictures. I use lots and lots of examples. We’ll reveal the secret inner-workings of AWS, Netflix, Facebook Messenger, Amazon Kindle, Apple iCloud, Google Maps, Nest and cloud DVRs. You’ll learn by seeing and understanding; no matter if you're a complete beginner, someone who knows a little and wants to learn more, or a programmer looking to change their career to the cloud.The cloud is the future. You don't want to miss out on the future, do you? Read this book and we'll discover it together.I’m excited. This will be fun. Let’s get started!

    No other country in the world matches America’s creative drive and its ability to turn innovative ideas into revolutionary products–from antilock brakes and steel-belted radial tires to sophisticated software and microprocessors. But as fast as we introduce new products, we lose the markets we establish to countries that know how to manufacture higher quality versions for less money. As Japanese and European firms win market share by concentrating on quality, America is continually forced to rely on innovation to stay ahead. In The Ice Cream Maker, Chowdhury uses a simple story to illustrate how businesses can instill quality into our culture and into every product we design, build, and market. The protagonist of the story is Peter Delvecchio, the manager of a regional ice cream company, who is determined to sell its ice cream to a flourishing national grocery chain, Natural Foods. In conversations with the Natural Foods manager, Peter learns how the extraordinarily successful retailer achieves its renowned high standard of excellence, both in the services it provides its customers and in the foods it manufactures and sells. Quality, he discovers, must be the mission of every employee; by learning to listen, enrich, and optimize, he can encourage and sustain the highest levels of quality in everything the company does.Like Fish! and Who Moved My Cheese? The Ice Cream Maker offers an essential and universal lesson about one of industry's foremost challenges in a thoroughly engaging style. For managers and executives, small business owners and entrepreneurs, The Ice Cream Maker is a compelling, eye-opening guide to the most effective ways to achieve excellence and become industry leaders on the global stage.

    W. Edwards Deming, a household name in Japan, became the prime catalyst behind the incredible success of Japanese industry. In fact, since 1951, the Deming Prize has been the most coveted and prestigious award among Japanese corporations, similar to the Malcolm Baldrige Award for quality in business in the United States. Today, Deming is finally becoming a household name in his own country. The lessons he has to teach American business are more urgent than ever. Just how different is the Deming Management Method? Compare just a few of the many differences in beliefs between conventional organizations and Deming organizations: Standard Company * Quality is expensive * Defects are caused by workers * Buy at lowest cost * Fear and reward are proper ways to motivate * Play one supplier off against another Deming Company * Quality leads to lower costs * Most defects are caused by the system * Buy from vendors committed to quality * Fear leads to disaster * Work with suppliers

    This book is aimed at the working Rails developer who is looking to grow and evolve Rails projects while keeping them flexible, maintainable, and robust. The focus is on pragmatic solutions which tread a “middle way” between the expedience of the Rails “golden path”, and rigid OO purity.

    You'll work through the development of each project, implementing and running the applications while learning new features along the way.Web frameworks are playing a major role in the creation of today's most compelling web applications, because they automate many of the tedious tasks, allowing developers to instead focus on providing users with creative and powerful features. Python developers have been particularly fortunate in this area, having been able to take advantage of Django, a very popular open source web framework whose stated goal is to make it easier to build better web applications more quickly with less code.Practical Django Projects is the first book to introduce this popular framework by way of a series of realworld projects. What you'll learn Capitalize upon Django's welldefined framework architecture to build web applications faster than ever before Learn by doing by working through the creation of three realworld projects, including a content management system, blog, and social networking site Build userfriendly web sites with wellstructured URLs, session tracking, and syndication options Let Django handle tedious tasks such as database interaction while you focus on building compelling applications Who this book is forWeb developers seeking to use the powerful Django framework to build powerful web sites. "

    Although Cocoa is indeed huge, once you understand the object-oriented patterns it uses, you'll find it remarkably elegant, consistent, and simple. Cocoa Design Patterns begins with the mother of all patterns: the Model-View-Controller (MVC) pattern, which is central to all Mac and iPhone development. Encouraged, and in some cases enforced by Apple's tools, it's important to have a firm grasp of MVC right from the start. The book's midsection is a catalog of the essential design patterns you'll encounter in Cocoa, including Fundamental patterns, such as enumerators, accessors, and two-stage creation Patterns that empower, such as singleton, delegates, and the responder chain Patterns that hide complexity, including bundles, class clusters, proxies and forwarding, and controllers And that's not all of them! Cocoa Design Patterns painstakingly isolates 28 design patterns, accompanied with real-world examples and sample code you can apply to your applications today. The book wraps up with coverage of Core Data models, AppKit views, and a chapter on Bindings and Controllers. Cocoa Design Patterns clearly defines the problems each pattern solves with a foundation in Objective-C and the Cocoa frameworks and can be used by any Mac or iPhone developer.

    Simplify, focus, and win by outperforming all your competition on those things that create real value for the customer. This is about substance, not flash, and the ultimate wow factors of high quality performance, consistency and relentless improvement.Thought provoking questions, activities, and action steps are built into every section of the book Author Joe Calloway, an International Speakers Hall of Fame inductee, has been a popular business speaker for thirty years and worked with hundreds of companies to help them create and sustain success Be the Best at What Matters Most will help you and your team focus on taking the actions that maximize results, growth, and profit.

    You could spend years discovering solutions to them all, step by step as you encounter them. Or you can just look in here. All successful database applications are destined to eventually run into issues scaling up their performance. Peek into the future of your PostgreSQL database's problems today. Know the warning signs to look for, and how to avoid the most common issues before they even happen. Surprisingly, most PostgreSQL database applications evolve in the same way: Choose the right hardware. Tune the operating system and server memory use. Optimize queries against the database, with the right indexes. Monitor every layer, from hardware to queries, using some tools that are inside PostgreSQL and others that are external. Using monitoring insight, continuously rework the design and configuration. On reaching the limits of a single server, break things up; connection pooling, caching, partitioning, and replication can all help handle increasing database workloads. The path to a high performance database system isn't always easy. But it doesn't have to be mysterious with the right guide. This book is a clear, step-by-step guide to optimizing and scaling up PostgreSQL database servers. - Publisher.

    On the run from an old romantic interest who won't take no for an answer, Rhapsody literally bumps into a couple of shady characters: half-breeds who come to her rescue in the nick of time. Only the rescue turns into an abduction, and Rhapsody soon finds herself dragged along on an epic voyage, one that spans centuries and ranges across a wonder-filled fantasy world-- a world so real you can hear the sweet music of Rhapsody's aubade and smell the smoldering forges deep within the Cauldron. Prophecy In Rhapsody, a fellowship was forged-- three companions who, through great adversity, became a force to be reckoned with: Rhapsody the Singer; Achmed the assassin-king; and Grunthor, the giant Sergeant-Major. Prophecy continues their powerful epic. Driven by a prophetic vision, Rhapsody races to rescue a religious leader while Achmed and Grunthor seek the F'dor-- an ancient and powerful demon. These companions may be destined to fulfill The Prophecy of the Three, but their time is running short. They must find their elusive enemy before his darkness consumes them all. Destiny A Fellowship of ThreeTo stand against the F'dor-- an ancient, vile being intent on destroying the world-- a fellowship has been forged: Rhapsody, a Singer of great talent and beauty; Achmed, an assassin with unearthly talents; and Grunthor, a giant of jolly disposition and lethal skill with weapons.Driven by prophetic visions, the three know that time is running short, know that they must find their elusive enemy before his darkness consumes them all. But after their final, brutal confrontation with the F'dor, their world crosses the threshold of disaster and faces utter oblivion. The action reaches a fevered pitch, achieving a crescendo of tragedy, love, and triumph of human spirit over world-shattering cataclysm.With death at hand and the world crumbling at their feet, these three will finally discover their true ...Destiny

    As the size and complexity of commercial software have grown, the gap between academic computer science and industry has widened. It's an open secret that there is little engineering in software engineering, which continues to rely not on codified scientific knowledge but on intuition and experience.Barr, who worked as a programmer for more than twenty years, describes how the industry has evolved, from the era of mainframes and Fortran to today's embrace of the cloud. He explains bugs and why software has so many of them, and why today's interconnected computers offer fertile ground for viruses and worms. The difference between good and bad software can be a single line of code, and Barr includes code to illustrate the consequences of seemingly inconsequential choices by programmers. Looking to the future, Barr writes that the best prospect for improving software engineering is the move to the cloud. When software is a service and not a product, companies will have more incentive to make it good rather than "good enough to ship."

    Many exercises are presented to help reinforce the lessons learned, and answers to the exercises are given in a new appendix.Most of the remaining chapters are dedicated to the reference material, which describes in detail the standard features of Scheme included in the Revised$^5$ Report on Scheme and the ANSI/IEEE standard for Scheme.Numerous examples are presented throughout the introductory and reference portions of the text, and a unique set of extended example programs and applications, with additional exercises, are presented in the final chapter. Reinforcing the book's utility as a reference text are appendices that present the formal syntax of Scheme, a summary of standard forms and procedures, and a bibliography of Scheme resources.The Scheme Programming Language stands alone as an introduction to and essential reference for Scheme programmers. it is also useful as a supplementary text for any course that uses Scheme.The Scheme Programming Language is illustrated by artist Jean-Pierre Hébert, who writes Scheme programs to extend his ability to create sophisticated works of digital art.R. Kent Dybvig is Professor of Computer Science at Indiana University and principal developer of Chez Scheme.

    This update to the bestselling first edition dives in to cover the exciting new features of the latest release of the Android mobile platform.Providing in-depth coverage of how to build mobile applications using the next major release of the Android SDK, this invaluable resource takes a hands-on approach to discussing Android with a series of projects, each of which introduces a new feature and highlights techniques and best practices to get the most out of Android.The Android SDK is a powerful, flexible, open source platform for mobile devices Shares helpful techniques and best practices to maximize the capabilities of Android Explains the possibilities of Android through the use of a series of detailed projects Demonstrates how to create real-world mobile applications for Android phones Includes coverage of the latest version of Android Providing concise and compelling examples, Professional Android Application Development is an updated guide aimed at helping you create mobile applications for mobile devices running the latest version of Android.

    I'm changing things. This is it.Three old friends in their mid-twenties. One remarkable day. For Ted, Danny and Charlotte, it’s time to seize control. Make a difference. Change things. This is it.A day trip through the parks and raves and cafes of South London, where life is what you make it. The rapid fire words of Kate Tempest paint a picture of lives less ordinary in an unforgiving world, sound-tracked by an exhilarating score.The drama mixes rap-style poetry delivered with microphones and self-reflexive addresses to the audience.A play about love, life and losing your mind, and the first play from one of the UK’s most exciting performance poets, Kate Tempest.

    For more than a decade, well-known consultant and business professor Wayne Winston has been teaching corporate clients and MBA students the most effective ways to use Microsoft Excel for data analysis, modeling, and decision making. Now this award-winning educator shares the best of his classroom experience in this practical, business-focused guide. Each chapter advances your data analysis and modeling expertise using real-world examples and learn-by-doing exercises. You also get all the book’s problem-and-solution files on CD—for all the practice you need to solve complex problems and work smarter with Excel.Learn how to solve real business problems with Excel!Create best, worst, and most-likely scenarios for sales Calculate how long it would take to recoup a project’s startup costs Plan personal finances, such as computing loan terms or saving for retirement Estimate a product’s demand curve Simulate stock performance over a year Determine which product mix will yield the greatest profits Interpret the effects of price and advertising on sales Assign a dollar value to customer loyalty Manage inventory and order quantities with precision Create customer service queues with short wait times Estimate the probabilities of equipment failure Model business uncertainties Get new perspectives on data with PivotTable dynamic views Help predict quarterly revenue, outcomes of sporting events, presidential elections, and more! On the CD:Practice files for all the book’s exercises Solutions for problem sets Fully searchable eBook A Note Regarding the CD or DVDThe print version of this book ships with a CD or DVD. For those customers purchasing one of the digital formats in which this book is available, we are pleased to offer the CD/DVD content as a free download via O'Reilly Media's Digital Distribution services. To download this content, please visit O'Reilly's web site, search for the title of this book to find its catalog page, and click on the link below the cover image (Examples, Companion Content, or Practice Files). Note that while we provide as much of the media content as we are able via free download, we are sometimes limited by licensing restrictions. Please direct any questions or concerns to booktech@oreilly.com.