With this concise book, you will quickly gain working knowledge of Sinatra and its minimalist approach to building both standalone and modular web applications. Sinatra serves as a lightweight wrapper around Rack middleware, with syntax that maps closely to functions exposed by HTTP verbs, which makes it ideal for web services and APIs. If you have experience building applications with Ruby, you’ll quickly learn language fundamentals and see under-the-hood techniques, with the help of several practical examples. Then you’ll get hands-on experience with Sinatra by building your own blog engine. Learn Sinatra’s core concepts, and get started by building a simple application Create views, manage sessions, and work with Sinatra route definitions Become familiar with the language’s internals, and take a closer look at Rack Use different subclass methods for building flexible and robust architectures Put Sinatra to work: build a blog that takes advantage of service hooks provided by the GitHub API

    It could forever change how you experience and interact with your physical surroundings, open your eyes to the perversity of bad design and the desirability of good design, and raise your expectations about how things should be designed.B & W photographs and illustrations throughout.

    Collected from the series of blog posts starting at: https://bartoszmilewski.com/2014/10/2...Hardcover available at: http://www.blurb.com/b/9008339-catego...

    Discover how more than 35 Tech Leads find the delicate balance between the technical and non-technical worlds. Discover the challenges a Tech Lead faces and how to overcome them. You may be surprised by the lessons they have to share.Now available at https://leanpub.com/talking-with-tech...

    Now, hopes and expectations for JavaScript’s future are considerable.In this insightful report, Dr. Axel Rauschmayer explains how the combination of several technologies and opportunities in the past 15 years turned JavaScript’s fortunes. With that as a backdrop, he provides a detailed look at proposed new features and fixes in the next version, ECMAScript.next, and then presents his own JavaScript wish list—such as an integrated IDE.

      Statistics are everywhere, as integral to science as they are to business, and in the popular media hundreds of times a day. In this age of big data, a basic grasp of statistical literacy is more important than ever if we want to separate the fact from the fiction, the ostentatious embellishments from the raw evidence -- and even more so if we hope to participate in the future, rather than being simple bystanders. In The Art of Statistics, world-renowned statistician David Spiegelhalter shows readers how to derive knowledge from raw data by focusing on the concepts and connections behind the math. Drawing on real world examples to introduce complex issues, he shows us how statistics can help us determine the luckiest passenger on the Titanic, whether a notorious serial killer could have been caught earlier, and if screening for ovarian cancer is beneficial. The Art of Statistics not only shows us how mathematicians have used statistical science to solve these problems -- it teaches us how we too can think like statisticians. We learn how to clarify our questions, assumptions, and expectations when approaching a problem, and -- perhaps even more importantly -- we learn how to responsibly interpret the answers we receive. Combining the incomparable insight of an expert with the playful enthusiasm of an aficionado, The Art of Statistics is the definitive guide to stats that every modern person needs.

    This book will help those familiar the command line and basic shell scripting start using Ansible to provision and manage anywhere from one to thousands of servers.The book begins with fundamentals, like installing Ansible, setting up a basic inventory file, and basic concepts, then guides you through Ansible's many uses, including ad-hoc commands, basic and advanced playbooks, application deployments, custom modules, and special cases like running ansible in 'pull' mode when you have thousands of servers to manage (or more). Everything is explained with pertinent real-world examples, often using Vagrant-managed virtual machines.

    Did you design your system to survivef a sudden rush of visitors from Digg or Slashdot? Or an influx of real world customers from 100 different countries? Are you ready for a world filled with flakey networks, tangled databases, and impatient users?If you're a developer and don't want to be on call for 3AM for the rest of your life, this book will help.In Release It!, Michael T. Nygard shows you how to design and architect your application for the harsh realities it will face. You'll learn how to design your application for maximum uptime, performance, and return on investment.Mike explains that many problems with systems today start with the design.

    The book begins with the basic concepts of logic and set theory, to familiarize students with the language of mathematics and how it is interpreted. These concepts are used as the basis for a step-by-step breakdown of the most important techniques used in constructing proofs. To help students construct their own proofs, this new edition contains over 200 new exercises, selected solutions, and an introduction to Proof Designer software. No background beyond standard high school mathematics is assumed. Previous Edition Hb (1994) 0-521-44116-1 Previous Edition Pb (1994) 0-521-44663-5

    With a blend of software engineering facts and thought-provoking opinions, Fred Brooks offers insight for anyone managing complex projects. These essays draw from his experience as project manager for the IBM System/360 computer family and then for OS/360, its massive software system. Now, 45 years after the initial publication of his book, Brooks has revisited his original ideas and added new thoughts and advice, both for readers already familiar with his work and for readers discovering it for the first time.The added chapters contain (1) a crisp condensation of all the propositions asserted in the original book, including Brooks' central argument in The Mythical Man-Month: that large programming projects suffer management problems different from small ones due to the division of labor; that the conceptual integrity of the product is therefore critical; and that it is difficult but possible to achieve this unity; (2) Brooks' view of these propositions a generation later; (3) a reprint of his classic 1986 paper "No Silver Bullet"; and (4) today's thoughts on the 1986 assertion, "There will be no silver bullet within ten years."

    Developers need to understand how to use constraints as guiderails that ensure desired outcomes, and how seemingly small changes can affect a system's properties.

     Dan, a wise-cracking excessive drinker, is haunted by the memory of his dead wife. Short after the two won the lottery and purchased a small beach bungalow in the Florida Keys, her life was taken in a car accident. Soon after his wife's death, Dan relocated to the Keys with his wife's dog, whom he blames for her death. In Sleeping Dogs Lie, Dan Coast, an unlicensed private detective of sorts is hired to find the missing boyfriend of a woman who herself soon ends up missing. When someone from the woman's past unexpectedly shows up at Dan's home, with a story of faked deaths and missing life insurance money; Dan along with his side kick Red set out to find the money, and the woman.

    This revolutionary device: Is Easy to Access Has Excellent Voice Quality Provides Superior Voice Recognition Handles Many Privacy Concerns Has Frequent Software Upgrades Offers Natural-Sounding Voices Allows for Cloud Processing Has Solid, Dependable Hardware What can this book do for you? Amazon Echo: Master Your Amazon Echo; User Guide and Manual teaches you how to use Alexa, how this feature is designed, and how to set it up. You'll learn about: The Body The Blue Light How to Use the Microphones Using Sensors Remote Control Functions Essential Setup Tips You'll find out how to Navigate the Echo and its App, Use the Echo Pen, and Activate your Echo with Voice Command and the remote control. You'll learn to use Bluetooth and connect other home devices to your Echo - including music services! Let Amazon Echo: Master Your Amazon Echo; User Guide and Manual take you by the hand and turn you into an Amazon Echo expert! Download your copy TODAY!

    Please order that book instead to get a better value.This simple guide will show you how to get hundreds of free books for your Kindle! NOTE: This title does not actually contain the free books, but will help you find them. NOTE: There is a revised version of this title available.

    From shopping, to even getting information on flight times, to even tracking when to walk your dog, Alexa can do this. With over 23,000 skills and more being developed each day, Alexa is here to stay and is here to help you. But what can you do with Alexa? What are some of the abilities of Alexa that you can engage in, some that you can use to truly benefit yourself and others? Well, you’re about to find out. Here is a preview of what you'll learn: All of the different Echo devices and what they entail Various tips on how to use them all Tips to use the various features, including shopping Troubleshooting tips in order to have the best Amazon Echo experience Why you might consider getting one over another The capabilities of Alexa, including a whole slew of various things you can inquire from Alexa A comprehensive list of 1001 things to do with Alexa, including valuable tips and tricks You can become the Echo master that you know you can be, and this book is just the beginning of it all. With this, you’ll be able to control your Echo in the way that it’s meant to be, in the ways that you want it to be, and the different natures of this. Become the person that you want to be today, and make sure that you learn about your Echo, since you truly won’t regret it the moment you begin to use it, and you’ll master it even more with every interaction.