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Learning Swift - Second Edition
by Andrew J WagnerDevelop the skills required to create compelling, maintainable, and robust iOS and OS X apps with Swift About This Book * Write expressive, understandable, and maintainable Swift 2 code with this hands-on tutorial * Unveil the complex underpinnings of Swift to turn your app ideas into reality * This book is packed with real-life examples to help you implement concepts as you learn Who This Book Is For If you are looking to build iOS or OS X apps using the most modern technology, this book is ideal for you. You will find this book especially useful if you are new to programming or if you are yet to develop for iOS or OS X. No prior programming exposure is required. What You Will Learn * Form a solid understanding of the Swift 2 language * Get to know the practical aspects of how a computer program actually works * Understand the paradigms used by Apple's frameworks so you are not intimidated by them * Utilize the vast resources written in Objective-C to better inform your Swift programming * Develop a basic portfolio of Swift code by learning the critical concepts * Experience both object-oriented and functional programming * Get to know the new coding techniques made available by Swift 2 * Discover resources to ensure you never stop becoming a better developer In Detail Swift is Apple's new programming language and the future of iOS and OS X app development. It is a high-performance language that feels like a modern scripting language. On the surface, Swift is easy to jump into, but it has complex underpinnings that are critical to becoming proficient at turning an idea into reality. This book is an approachable, step-by-step introduction into programming with Swift for everyone. It begins by giving you an overview of the key features through practical examples and progresses to more advanced topics that help differentiate the proficient developers from the mediocre ones. It covers important concepts such as Variables, Optionals, Closures, Generics, and Memory Management. Mixed in with those concepts, it also helps you learn the art of programming such as maintainability, useful design patterns, and resources to further your knowledge. This all culminates in writing a basic iOS app that will get you well on your way to turning your own app ideas into reality. Style and approach This is an approachable, step-by-step guide to programming in Swift 2. Each topic is separated into compressible sections that are full of practical examples and easy-to-understand explanations. Each section builds on the previous topics so you can develop a proficient and comprehensive understanding of app development in Swift 2.
Machine Learning With Go
by Daniel WhitenackBuild simple, maintainable, and easy to deploy machine learning applications. About This Book • Build simple, but powerful, machine learning applications that leverage Go's standard library along with popular Go packages. • Learn the statistics, algorithms, and techniques needed to successfully implement machine learning in Go • Understand when and how to integrate certain types of machine learning model in Go applications. Who This Book Is For This book is for Go developers who are familiar with the Go syntax and can develop, build, and run basic Go programs. If you want to explore the field of machine learning and you love Go, then this book is for you! Machine Learning with Go will give readers the practical skills to perform the most common machine learning tasks with Go. Familiarity with some statistics and math topics is necessary. What You Will Learn • Learn about data gathering, organization, parsing, and cleaning. • Explore matrices, linear algebra, statistics, and probability. • See how to evaluate and validate models. • Look at regression, classification, clustering. • Learn about neural networks and deep learning • Utilize times series models and anomaly detection. • Get to grip with techniques for deploying and distributing analyses and models. • Optimize machine learning workflow techniques In Detail The mission of this book is to turn readers into productive, innovative data analysts who leverage Go to build robust and valuable applications. To this end, the book clearly introduces the technical aspects of building predictive models in Go, but it also helps the reader understand how machine learning workflows are being applied in real-world scenarios. Machine Learning with Go shows readers how to be productive in machine learning while also producing applications that maintain a high level of integrity. It also gives readers patterns to overcome challenges that are often encountered when trying to integrate machine learning in an engineering organization. The readers will begin by gaining a solid understanding of how to gather, organize, and parse real-work data from a variety of sources. Readers will then develop a solid statistical toolkit that will allow them to quickly understand gain intuition about the content of a dataset. Finally, the readers will gain hands-on experience implementing essential machine learning techniques (regression, classification, clustering, and so on) with the relevant Go packages. Finally, the reader will have a solid machine learning mindset and a powerful Go toolkit of techniques, packages, and example implementations. Style and approach This book connects the fundamental, theoretical concepts behind Machine Learning to practical implementations using the Go programming language.
VMware Performance and Capacity Management - Second Edition
by Iwan 'E1' RahabokMaster SDDC Operations with proven best practices About This Book * Understand the drawbacks of the traditional paradigm and management that make operations difficult in SDDC * Master performance and capacity management in Software-Defined Data Center * Operationalize performance and capacity monitoring with proven dashboards Who This Book Is For This book is primarily for any system administrator or cloud infrastructure specialist who is interested in performance management and capacity management using VMware technologies. This book will also help IT professionals whose area of responsibility is not VMware, but who work with the VMware team. You can be Windows, Linux, Storage, or Network team; or application architects. Note that prior exposure to the VMware platform of data-center and cloud-based solutions is expected. What You Will Learn * Simplify the task of performance and capacity management * Master the counters in vCenter and vRealize Operations and understand their dependency on one another * Educate your peers and management on SDDC Operations * Complete your SDDC monitoring to include non-VMware components * Perform SDDC performance troubleshooting * Explore real-life examples of how super metric and advanced dashboards * Introduce and implement a Performance SLA * Accomplish your Capacity Management by taking into service tiering and performance SLA In Detail Performance management and capacity management are the two top-most issues faced by enterprise IT when doing virtualization. Until the first edition of the book, there was no in-depth coverage on the topic to tackle the issues systematically. The second edition expands the first edition, with added information and reorganizing the book into three logical parts. The first part provides the technical foundation of SDDC Management. It explains the difference between a software-defined data center and a classic physical data center, and how it impacts both architecture and operations. From this strategic view, it zooms into the most common challenges--performance management and capacity management. It introduces a new concept called Performance SLA and also a new way of doing capacity management. The next part provides the actual solution that you can implement in your environment. It puts the theories together and provides real-life examples created together with customers. It provides the reasons behind each dashboard, so that you get the understanding on why it is required and what problem it solves. The last part acts as a reference section. It provides a complete reference to vSphere and vRealize Operations counters, explaining their dependencies and providing practical guidance on the values you should expect in a healthy environment. Style and approach This book covers the complex topic of managing performance and capacity in an easy-to-follow style. It relates real-world scenarios to topics in order to help you implement the book's teachings on the go.
ServiceNow Automation: Automate complex processes with ServiceNow to achieve streamlined delivery
by Poonam Sukhwani Ashish Rudra SrivastavaThe only book you need by your side when automating ServiceNow within your IT organization. Key Features Discover how to automate complex tasks on remote computers quickly and reliably. Learn how to fully utilize the skills and knowledge of your entire organization without increasing costs or labor. Master the skills needed to run orchestration-specific workflow activities with ServiceNow Book Description ServiceNow helps organizations create a modern work environment by making daily activities service-oriented and streamlining the delivery and management of services. Automating these processes and tasks remains at the heart of what ServiceNow does and learning how to automate ServiceNow is critical in putting enterprise-level service management to work. This book shows exactly how IT organizations can automate complex tasks on remote computers quickly and in a secure manner. We will cover various facets of automation and take a multi-system approach with examples ranging from VMware, Amazon EC2, and Active Directory to configuring Puppet and Chef automation. What you will learn Understand the Importance and the power of automation. Replace unstructured work patterns with intelligent workflows. Identify the components of the ServiceNow user interface. Learn to automate and align business service workflows across the organization in support of the core mission. Perform an objective-based analysis that delivers a business case presenting the costs and benefits associated with migrating from legacy solutions to ServiceNowWho this book is for ServiceNow system administrators who would like to automate their processes. Some experience building workflows in ServiceNow is expected. ServiceNow scripting or equivalent knowledge would be helpful.
CentOS 7 Linux Server Cookbook - Second Edition
by Jonathan Hobson Oliver PelzOver 80 recipes to get up and running with CentOS 7 Linux server About This Book * A practical guide to install, configure, administer and maintain CentOS 7 servers * An in-depth guide to the CentOS 7 operating system, exploring its various new features and changes in server administration * Presents tricks and solutions to tackle common server issues with the help of practical examples and real-life scenarios Who This Book Is For This book is targeted at beginner and more experienced system administrators alike who want to use CentOS as their server solution. Readers do not need much pre-knowledge or experience at all to work with this book. What You Will Learn * Install and configure CentOS 7 Linux server system from scratch using normal and advanced methods * Maintain a performance-based and secure server solution by deploying expert configuration advice and managing software packages * Monitor, manage and develop your server's file system to maintain a stable performance * Gain best practice methods on sharing files and resources through a network * Install and configure common standard services such as web, mail, FTP, database and domain name server technologies * Introduce you to the world of operating-system-level virtualization using the Docker platform. * Understand the fundamentals of the Security-Enhanced Linux access control architecture * Monitor your IT infrastructure using Nagios In Detail This book will provide you with a comprehensive series of starting points that will give you direct access to the inner workings of the latest CentOS version 7 and help you trim the learning curve to master your server. You will begin with the installation and basic configuration of CentOS 7, followed by learning how to manage your system, services and software packages. You will then gain an understanding of how to administer the file system, secure access to your server and configure various resource sharing services such as file, printer and DHCP servers across your network. Further on, we cover advanced topics such as FTP services, building your own DNS server, running database servers, and providing mail and web services. Finally, you will get a deep understanding of SELinux and you will learn how to work with Docker operating-system virtualization and how to monitor your IT infrastructure with Nagios. By the end of this book, you will have a fair understanding of all the aspects of configuring, implementing and administering CentOS 7 Linux server and how to put it in control. Style and approach This book is a practical reference guide with hands-on examples and solutions to real-world administration problems. It covers in-depth and comprehensive information on CentOS 7 and its new features.
Modular Programming with JavaScript
by Sasan SeydnejadModularize your JavaScript code for better readability, greater maintainability, and enhanced testability About This Book * Design and build fully modular, modern JavaScript applications using modular design concepts * Improve code portability, maintainability, and integrity while creating highly scalable and responsive web applications * Implement your own loosely coupled code blocks that can power highly maintainable and powerful applications in a flexible and highly responsive modular architecture Who This Book Is For If you are an intermediate to advanced JavaScript developer who has experience of writing JavaScript code but probably not in a modular, portable manner, or you are looking to develop enterprise level JavaScript applications, then this book is for you. A basic understanding of JavaScript concepts such as OOP, prototypal inheritance, and closures is expected. What You Will Learn * Understand the important concepts of OOP in JavaScript, such as scope, objects, inheritance, event delegation, and more * Find out how the module design pattern is used in OOP in JavaScript * Design and augment modules using both tight augmentation and loose augmentation * Extend the capabilities of modules by creating sub-modules using techniques such as cloning and inheritance * Move from isolated module pieces to a cohesive, well integrated application modules that can interact and work together without being tightly coupled * See how SandBoxing is used to create a medium for all the modules to talk to each other as well as to the core * Use the concepts of modular application design to handle dependencies and load modules asynchronously * Become familiar with AMD and CommonJS utilities and discover what the future of JavaScript holds for modular programming and architecture In Detail Programming in the modular manner is always encouraged for bigger systems--it is easier to achieve scalability with modular programming. Even JavaScript developers are now interested in building programs in a modular pattern. Modules help people who aren't yet familiar with code to find what they are looking for and also makes it easier for programmers to keep things that are related close together. Designing and implementing applications in a modular manner is highly encouraged and desirable in both simple and enterprise level applications. This book covers some real-life examples of modules and how we can translate that into our world of programming and application design. After getting an overview of JavaScript object-oriented programming (OOP) concepts and their practical usage, you should be able to write your own object definitions using the module pattern. You will then learn to design and augment modules and will explore the concepts of cloning, inheritance, sub-modules, and code extensibility. You will also learn about SandBoxing, application design, and architecture based on modular design concepts. Become familiar with AMD and CommonJS utilities. By the end of the book, you will be able to build spectacular modular applications in JavaScript. Style and approach This in-depth step-by-step guide will teach you modular programming with JavaScript. Starting from the basics, it will cover advanced modular patterns that can be used in sophisticated JavaScript applications.
Multithreading with C# Cookbook - Second Edition
by Eugene AgafonovOver 70 recipes to get you writing powerful and efficient multithreaded, asynchronous, and parallel programs in C# 6.0 About This Book * Rewritten and updated to take advantage of the latest C# 6 features * Learn about multithreaded, asynchronous, and parallel programming through hands-on, code-first examples * Use these recipes to build fast, scalable, and reliable applications in C# Who This Book Is For This book is aimed at those who are new to multithreaded programming, and who are looking for a quick and easy way to get started. It is assumed that you have some experience in C# and .NET already, and you should also be familiar with basic computer science terminology and basic algorithms and data structures. What You Will Learn * Use C# 6.0 asynchronous language features * Work with raw threads, synchronize threads, and coordinate their work * Develop your own asynchronous API with Task Parallel Library * Work effectively with a thread pool * Scale up your server application with I/O threads * Parallelize your LINQ queries with PLINQ * Use common concurrent collections * Apply different parallel programming patterns * Use Reactive Extensions to run asynchronous operations and manage their options In Detail Multi-core processors are synonymous with computing speed and power in today's world, which is why multithreading has become a key concern for C# developers. Multithreaded code helps you create effective, scalable, and responsive applications. This is an easy-to-follow guide that will show you difficult programming problems in context. You will learn how to solve them with practical, hands-on, recipes. With these recipes, you'll be able to start creating your own scalable and reliable multithreaded applications. Starting from learning what a thread is, we guide you through the basics and then move on to more advanced concepts such as task parallel libraries, C# asynchronous functions, and much more. Rewritten to the latest C# specification, C# 6, and updated with new and modern recipes to help you make the most of the hardware you have available, this book will help you push the boundaries of what you thought possible in C#. Style and approach This is an easy-to-follow guide full of hands-on examples of real-world multithreading tasks. Each topic is explained and placed in context, and for the more inquisitive, there are also more in-depth details of the concepts used.
Learning Qlik Sense®: The Official Guide - Second Edition
by Christopher Ilacqua Henric Cronstrom James RichardsonGet the most out of your Qlik Sense investment with the latest insight and guidance direct from the Qlik Sense team About This Book * Updated with new coverage on Qlik Cloud, Qlik Sense Modeling, and Extending the Qlik Analytic Platform. * Get insider insight on Qlik Sense and its new approach to business intelligence * Explore practical demonstrations for utilizing Qlik Sense to discover data for sales, human resources, and more Who This Book Is For Learning Qlik Sense®: The Official Guide Second Edition is for anyone seeking to understand and utilize the revolutionary new approach to business intelligence offered by Qlik Sense. Familiarity with the basics of business intelligence will be helpful when picking up this book, but not essential. What You Will Learn * Understand the vision behind the creation of Qlik Sense, and the promise that data discovery offers to you and your organization * Get to grips with the life cycle of a Qlik Sense application * Load and manage your data for app creation * Visualize your data with Qlik Sense's engaging and informative graphing * Administer your Qlik Sense system and monitor its security * Build efficient and responsive Associative Models * Extend the Qlik Analytic Platform with the Dev Hub * Optimize Qlik Sense for sales, human resources, and demographic data discovery In Detail The intuitive and powerful Qlik Sense visual analytics software allows anyone to engage in data discovery, to explore your data, and find meaningful insights to empower your business. Qlik Sense lets you easily create personalized reports and visualizations and reveal essential connections to show new opportunities from every angle. Written by members of the Qlik Sense team, this book is the official guide from Qlik to understanding and using their powerful new product with fully updated coverage to the latest features of the most modern edition of Qlik Sense. Benefit from the vision behind the development of Qlik Sense and get to grips with how Qlik Sense can empower you as a data discovery consumer. Learn how to create your own applications for Qlik Sense to customize it to meet your personal needs for business intelligence, and how to oversee and administer the Qlik Sense data architecture. Finally, explore utilizing Qlik Sense to uncover essential data, with practical examples on finding and visualizing intelligence for sales figures, human resources information, travel expense tracking, and demographic data discovery. Style and approach This book is a practical guide to understand what Qlik Sense is and how to implement it. This is an example-rich, step-by-step book to implement and optimize Qlik Sense for sales, human resources, and demographic data discovery.
ServiceNow Cookbook
by Ashish SrivastavaThis book targets IT professionals and administrators who have some experience of working with ServiceNow already and are looking to solve regular or unique problems that surface when using ServiceNow. It’s advisable to have a basic level of administration experience with ServiceNow. Familiarity with JavaScript is assumed.
Mastering IPython 4.0
by Thomas BittermanThis book is for IPython developers who want to make the most of IPython and perform advanced scientific computing with IPython utilizing the ease of interactive computing. It is ideal for users who wish to learn about the interactive and parallel computing properties of IPython 4.0, along with its integration with third-party tools and concepts such as testing and documenting results.
Architecting Data-Intensive Applications: Develop scalable, data-intensive, and robust applications the smart way
by Anuj KumarArchitect and design data-intensive applications and, in the process, learn how to collect, process, store, govern, and expose data for a variety of use casesKey FeaturesIntegrate the data-intensive approach into your application architectureCreate a robust application layout with effective messaging and data querying architectureEnable smooth data flow and make the data of your application intensive and fastBook DescriptionAre you an architect or a developer who looks at your own applications gingerly while browsing through Facebook and applauding it silently for its data-intensive, yet fluent and efficient, behaviour? This book is your gateway to build smart data-intensive systems by incorporating the core data-intensive architectural principles, patterns, and techniques directly into your application architecture.This book starts by taking you through the primary design challenges involved with architecting data-intensive applications. You will learn how to implement data curation and data dissemination, depending on the volume of your data. You will then implement your application architecture one step at a time. You will get to grips with implementing the correct message delivery protocols and creating a data layer that doesn’t fail when running high traffic. This book will show you how you can divide your application into layers, each of which adheres to the single responsibility principle. By the end of this book, you will learn to streamline your thoughts and make the right choice in terms of technologies and architectural principles based on the problem at hand.What you will learnUnderstand how to envision a data-intensive systemIdentify and compare the non-functional requirements of a data collection componentUnderstand patterns involving data processing, as well as technologies that help to speed up the development of data processing systemsUnderstand how to implement Data Governance policies at design time using various Open Source ToolsRecognize the anti-patterns to avoid while designing a data store for applicationsUnderstand the different data dissemination technologies available to query the data in an efficient mannerImplement a simple data governance policy that can be extended using Apache FalconWho this book is forThis book is for developers and data architects who have to code, test, deploy, and/or maintain large-scale, high data volume applications. It is also useful for system architects who need to understand various non-functional aspects revolving around Data Intensive Systems.
Mastering Chef Provisioning
by Earl WaudLearn Chef Provisioning like a boss and finally own your infrastructure About This Book * This is the first Chef book focused on provisioning infrastructure as its sole task. The book offers a clear solution to a specific pain point: learn to make your system work faster. * Learning better approaches to load balancing and parallelization with this book will save you time * By mastering the techniques in this book, you will know how to run an entire fleet of machines without breaking a sweat * This book is more helpful than the documentation ( https://docs.chef.io/provisioning.html), with a stronger guiding voice and clearer explanations and use cases Who This Book Is For This book is for Software Engineers, System Administrators, or DevOps Engineers who need to quickly deliver reliably consistent infrastructure at scale. You are expected to have intermediate experience with Chef and Ruby and will be reading this book to advance your knowledge and take your skillset to the next level. What You Will Learn * Use best practices to describe your entire infrastructure as code * Automate and document every aspect of your network, from the hardware of individual nodes to software, middleware, and all containers and clouds * Create a perfect model system * Make the best possible use of your resources and avoid redundancy * Deliver on the promise of Infrastructure as Code * Scale with ease by properly provisioning their infrastructure * Use the best Test Driven Development methodologies In Detail This book will show you the best practices to describe your entire infrastructure as code. With the help of this book you can expand your knowledge of Chef because and implement robust and scalable automation solutions. You can automate and document every aspect of your network, from the hardware to software, middleware, and all your containers. You will become familiar with the Chef's Chef Provisioning tool. You will be able to make a perfect model system where everything is represented as code beneath your fingertips. Make the best possible use of your resources, and deliver infrastructure as code, making it as versionable, testable and repeatable as application software Style and approach By dedicating a whole book solely to the question of provisioning, this book will teach administrators to use Chef as a birds-eye lens for their entire system. It will moves you away from the specifics of each machine and its automations and instead will teach you them how to approach the entire cluster as something different than the sum of its parts. By focusing on infrastructure as code as its own project, the book offers elegant, time-saving solutions for a perfectly described and automated network.
ReactJS Blueprints
by Sven A. RobbestadCreate powerful applications with ReactJS, the most popular platform for web developers today About This Book * Create web apps with the most popular JavaScript library in the world * Learn how to speed up your development process and save valuable time * Work though step-by-step tutorials that provide easy-to-understand solutions to real-world problems Who This Book Is For This book is for those who want to develop applications with ReactJS. With its wide variety of topics, it caters both to the inexperienced developer as well as to the advanced, and it doesn't require any prior experience with ReactJS. What You Will Learn * Create a development environment that speeds up your development process * Find out about responsive web development and create apps that can be used on any device * Effortlessly connect to public and private APIs * Create efficient components that are easily testable and small enough to completely understand * Understand what data flow means in ReactJS and why you never need to worry about where data changes originate * Create universal apps that run on the browser as well as on the server * Work with modern front-end tooling and level up your skills * Train yourself to think in terms of ReactJS In Detail The JavaScript revolution has landed! ReactJS is one of those rare technologies that comes out of nowhere and turns established practices on their head. It provides a different way of thinking about how you should develop your apps, and has already gained a massive adoption among web developers. Join the revolution, build web apps faster, and have more fun developing! Packed with real-world code, this book starts by covering the idea behind ReactJS and the key concepts you must familiarize yourself with. You will learn how to bootstrap your ReactJS projects and you'll also be provided with a handy scaffolding that you can use and reuse over and over. We then go on to cover a wide variety of apps, and will help you to structure and build your own components. Next, you will build a web shop, create a fully responsive and routable app, and also develop a real-time search app. Further on, you will be taught to work with public APIs to create a map-based application. You will also be taken through some advanced concepts such as Redux that are making a huge splash currently in the world of ReactJS. You'll learn how to efficiently seal off your app for guest access, interact with hardware APIs, and create a photo app. You will then master the art of making your apps universal, and find out how to deploy them to the cloud. Finally, we wrap up the book as you are shown how to make a game. What better way to kick off your ReactJS development journey? Style and approach This is an easy-to-follow guide full of real-world ReactJS applications. Each chapter is self-contained, and every code example is explained in detail.
Learning Responsive Data Visualization
by Christoph KornerMaster the art of building responsive visualizations on the Web About This Book * Learn the techniques for building data visualizations that work well for all screen sizes * Implement responsive techniques with popular libraries to get to grips with building responsive visualizations that work in the real world * Incorporate responsive workflow in your data visualization process to build visualizations that take a mobile-first approach. Who This Book Is For Web developers and data science professionals who want to make their visualizations work for smaller screen sizes. Some basic knowledge of JavaScript and Data visualization is expected. What You Will Learn * Get familiar with responsive design for data visualizations * Understand the main concepts of D3.js to create interactive visualizations * Unleash the power of Bootstrap to create stunning and responsive visualizations for all screen resolutions * Implement Touch and Mouse interactions for mobile-first applications * Design Transitions and Animations that impress in portrait and landscape * Build a Responsive World Map using GeoJSON and D3.js In Detail Using D3.js and Responsive Design principles, you will not just be able to implement visualizations that look and feel awesome across all devices and screen resolutions, but you will also boost your productivity and reduce development time by making use of Bootstrap--the most popular framework for developing responsive web applications. This book teaches the basics of scalable vector graphics (SVG), D3.js, and Bootstrap while focusing on Responsive Design as well as mobile-first visualizations; the reader will start by discovering Bootstrap and how it can be used for creating responsive applications, and then implement a basic bar chart in D3.js. You will learn about loading, parsing, and filtering data in JavaScript and then dive into creating a responsive visualization by using Media Queries, responsive interactions for Mobile and Desktop devices, and transitions to bring the visualization to life. In the following chapters, we build a fully responsive interactive map to display geographic data using GeoJSON and set up integration testing with Protractor to test the application across real devices using a mobile API gateway such as AWS Device Farm. You will finish the journey by discovering the caveats of mobile-first applications and learn how to master cross-browser complications. Style and approach As the world shifts to mobile devices for consuming data on the Web, developers are faced with the unique challenge of making data visualizations work for their smaller screens. The growth of responsive web design enabled developers to adopt page layouts and media for smaller screens, but there is still little information available on how to adapt data visualizations for the smaller screens. This book fills this important gap and shows how responsive web design principles can be extended to create visualizations that work well regardless of the screen size, thereby allowing developers to build user-friendly visualizations that work well on all devices. In addition to covering some of the popular techniques and design patterns for building responsive visualizations, the book also shows readers how to implement these techniques with the help of some popular tools and libraries.
Expert Python Programming - Second Edition
by Tarek Ziade Michal JaworskiBecome an ace Python programmer by learning best coding practices and advance-level concepts with Python 3.5 About This Book * Based on the latest stable version of Python (version 3.5) * Creating well manageable code that will run in various environments with different sets of dependencies * Packed with advanced concepts and best practices to write efficient Python code Who This Book Is For The book would appeal to web developers and Python programmers who want to start using version 3.5 and write code efficiently. Basic knowledge of Python programming is expected. What You Will Learn * Conventions and best practices that are widely adopted in the python community * Package python code effectively for community and production use * Easy and lightweight ways to automate code deployment on remote systems * Improve your code's quality, reliability, and performance * Write concurrent code in python * Extend python with code written in different languages In Detail Python is a dynamic programming language, used in a wide range of domains by programmers who find it simple, yet powerful. Even if you find writing Python code easy, writing code that is efficient and easy to maintain and reuse is a challenge. The focus of the book is to familiarize you with common conventions, best practices, useful tools and standards used by python professionals on a daily basis when working with code. You will begin with knowing new features in Python 3.5 and quick tricks for improving productivity. Next, you will learn advanced and useful python syntax elements brought to this new version. Using advanced object-oriented concepts and mechanisms available in python, you will learn different approaches to implement metaprogramming. You will learn to choose good names, write packages, and create standalone executables easily. You will also be using some powerful tools such as buildout and vitualenv to release and deploy the code on remote servers for production use. Moving on, you will learn to effectively create Python extensions with C, C++, cython, and pyrex. The important factors while writing code such as code management tools, writing clear documentation, and test-driven development are also covered. You will now dive deeper to make your code efficient with general rules of optimization, strategies for finding bottlenecks, and selected tools for application optimization. By the end of the book, you will be an expert in writing efficient and maintainable code. Style and approach An easy-to-follow guide that covers industry followed best practices in Python programming
Socket.IO Cookbook
by Tyson CadenheadOver 40 recipes to help you create real-time JavaScript applications using the robust Socket.IO framework About This Book * Create secure WebSocket connections and real-time mobile applications using Socket.IO * Devise efficient messaging systems between the server side and the client side * A step-by-step implementation guide to help you create elements of Socket.IO application Who This Book Is For If you have some knowledge of JavaScript and Node.js and want to create awe-inspiring application experiences using real time communication, then this book is for you. Developers with knowledge of other scripting languages should also be able to easily follow along. What You Will Learn * Build rich and interactive real-time dashboards using Socket.IO to pipe in data as it becomes available * Design chat and multiple-person interfaces that leverage Socket.IO for communication * Segment conversations to rooms and namespaces so that every socket doesn't have to receive every message * Secure your data by implementing various authentication techniques, locking down the HTTP referrer and using secure WebSockets * Load balance across multiple server-side nodes and keep your WebSockets in sync using Redis, RabbitMQ or Memcached * Stream binary data such as audio and video in real-time over a Socket.IO connection * Create real-time experiences outside of the browser by integrating Socket.IO with hybrid mobile applications In Detail Socket.IO is a JavaScript library that provides you with the ability to implement real-time analytics, binary streaming, instant messaging, and document collaboration. It has two parts: a client-side library that runs in the browser, and a server-side library for node.js. Socket.IO is event-driven and primarily uses the WebSocket protocol that allows us to emit data bi-directionally from the server and the client. Socket.IO This book is a complete resource, covering topics from webSocket security to scaling the server-side of a Socket.IO application and everything in between. This book will provide real-world examples of how secure bi-directional, full-duplex connections that can be created using Socket.IO for different environments. It will also explain how the connection vulnerabilities can be resolved for large numbers of users and huge amounts of data/messages. By the end of the book, you will be a competent Socket.IO developer. With the help of the examples and real-world solutions,you will learn to create fast, scalable, and dynamic real-time apps by creating efficient messaging systems between the server side and the client side using Socket.IO. Style and approach This book is written in a cookbook-style format and provides practical, immediately usable task-based recipes that show you how to create the elements of a Socket.IO application.
Getting Started with RethinkDB
by Gianluca TiepoloAbsorb the knowledge required to utilize, manage, and deploy RethinkDB using Node.js About This Book * Make the most of this open source, scalable database--RethinkDB --to ease the construction of web applications * Run powerful queries using ReQL, which is the most convenient language to manipulate JSON documents with * Develop fully-fledged real-time web apps using Node.js and RethinkDB Who This Book Is For Getting Started with RethinkDB is ideal for developers who are new to RethinkDB and need a practical understanding to start working with it. No previous knowledge of database programming is required, although a basic knowledge of JavaScript or Node.js would be helpful. What You Will Learn * Download and install the database on your system * Configure RethinkDB's settings and start using the web interface * Import data into RethinkDB * Run queries using the ReQL language * Create shards, replicas, and RethinkDB clusters * Use an index to improve database performance * Get to know all the RethinkDB deployment techniques In Detail RethinkDB is a high-performance document-oriented database with a unique set of features. This increasingly popular NoSQL database is used to develop real-time web applications and, together with Node.js, it can be used to easily deploy them to the cloud with very little difficulty. Getting Started with RethinkDB is designed to get you working with RethinkDB as quickly as possible. Starting with the installation and configuration process, you will learn how to start importing data into the database and run simple queries using the intuitive ReQL query language. After successfully running a few simple queries, you will be introduced to other topics such as clustering and sharding. You will get to know how to set up a cluster of RethinkDB nodes and spread database load across multiple machines. We will then move on to advanced queries and optimization techniques. You will discover how to work with RethinkDB from a Node.js environment and find out all about deployment techniques. Finally, we'll finish by working on a fully-fledged example that uses the Node.js framework and advanced features such as Changefeeds to develop a real-time web application. Style and approach This is a step-by-step book that provides a practical approach to RethinkDB programming, and is explained in a conversational, easy-to-follow style.
Machine Learning Algorithms: Popular Algorithms For Data Science And Machine Learning, 2nd Edition
by Giuseppe BonaccorsoBuild strong foundation for entering the world of Machine Learning and data science with the help of this comprehensive guide About This Book • Get started in the field of Machine Learning with the help of this solid, concept-rich, yet highly practical guide. • Your one-stop solution for everything that matters in mastering the whats and whys of Machine Learning algorithms and their implementation. • Get a solid foundation for your entry into Machine Learning by strengthening your roots (algorithms) with this comprehensive guide. Who This Book Is For This book is for IT professionals who want to enter the field of data science and are very new to Machine Learning. Familiarity with languages such as R and Python will be invaluable here. What You Will Learn • Acquaint yourself with important elements of Machine Learning • Understand the feature selection and feature engineering process • Assess performance and error trade-offs for Linear Regression • Build a data model and understand how it works by using different types of algorithm • Learn to tune the parameters of Support Vector machines • Implement clusters to a dataset • Explore the concept of Natural Processing Language and Recommendation Systems • Create a ML architecture from scratch. In Detail As the amount of data continues to grow at an almost incomprehensible rate, being able to understand and process data is becoming a key differentiator for competitive organizations. Machine learning applications are everywhere, from self-driving cars, spam detection, document search, and trading strategies, to speech recognition. This makes machine learning well-suited to the present-day era of Big Data and Data Science. The main challenge is how to transform data into actionable knowledge. In this book you will learn all the important Machine Learning algorithms that are commonly used in the field of data science. These algorithms can be used for supervised as well as unsupervised learning, reinforcement learning, and semi-supervised learning. A few famous algorithms that are covered in this book are Linear regression, Logistic Regression, SVM, Naive Bayes, K-Means, Random Forest, TensorFlow, and Feature engineering. In this book you will also learn how these algorithms work and their practical implementation to resolve your problems. This book will also introduce you to the Natural Processing Language and Recommendation systems, which help you run multiple algorithms simultaneously. On completion of the book you will have mastered selecting Machine Learning algorithms for clustering, classification, or regression based on for your problem. Style and approach An easy-to-follow, step-by-step guide that will help you get to grips with real -world applications of Algorithms for Machine Learning.
VMware vRealize Orchestrator Essentials
by Daniel LangenhanGet hands-on experience with vRealize Orchestrator and automate your VMware environment About This Book * Gain an in-depth understanding of vRO in the VMware infrastructure * Create your own advanced vRO scripts using JavaScript * A step-by-step tutorial to manage and create workflows with vRO Who This Book Is For This book is for VMware vSphere administrators who have minimal experience with automation tools and want to learn how to effectively automate their environment with VMware vRealize Orchestrator. A basic understanding of the VMware vSphere terms and concepts would be helpful. What You Will Learn * Familiarize yourself with the Orchestrator architecture and Explore how plugins can expand Orchestrator's capabilitiesExplore how plug-ins can expand Orchestrator's capabilities * Deploy and configure the vRealize Orchestrator appliance * Schedule and run workflows using the vSphere Web Client * Create your own workflows with minimal work * Use workflow presentations to improve your automation projects * Integrate JavaScript to enhance your workflows * Debug your workflows for errors and fix them * Learn how to create, import, and export packages, to enable easy exchange solutions with others In Detail The automation of virtual environments has become the focus of many endeavors. VMware vRealize Orchestrator is a tool that enables you to automate not only your VMware environments, but also the surrounding hardware and software infrastructure. Orchestrator is also a central tool in the VMware cloud initiative and is extensively used by products such as vRealize Automation. In this book, you will learn how Orchestrator is able to help you automate your complete VMware infrastructure as well as its surrounding hardware and software. After deploying and configuring the vRealize Orchestrator appliance, you will learn how to run the existing workflows that are a part of the Orchestrator library. You will also see how the vSphere Web Client integration of Orchestrator reduces the time you spend on your daily admin tasks. The main aspect here is to learn how to create new workflows from existing ones. You will also look at how you can create completely new workflows. This includes learning about JavaScript and using presentation features to improve the layout and user friendliness of your workflows. Toward the end, you will learn to check for errors in your workflows and debug them. By the time you're done with the book, you'll be proficient in managing your workflows. Style and approach This book follows a sequential approach with ample screenshots in the examples that convey a deeper understanding of all Orchestrator-related tasks.
Swift Data Structure and Algorithms
by Mario Eguiluz Alebicto Erik AzarMaster the most common algorithms and data structures, and learn how to implement them efficiently using the most up-to-date features of Swift 3 About This Book * Develop a deep understanding of the collections in the Swift Standard Library with this step-by-step guide * Develop native Swift data structures and algorithms for use in mobile, desktop, and server-based applications * Learn about performance efficiency between different data structures and algorithms Who This Book Is For This book is for developers who want to learn how to implement and use common data structures and algorithms natively in Swift. Whether you are a self-taught developer without a formal technical background or you have a degree in Computer Science, this book will provide with the knowledge you need to develop advanced data structures and algorithms in Swift using the latest language features. What You Will Learn * Get to know about the basic data structures and how to use the Swift REPL * Use the Swift Standard Library collections bridging to Objective-C collections, and find out about protocol-oriented programming * Find out about Swift generators and sequences, and see how to use them to implement advanced data structures such as Stack, StackList, Queue, and LinkedList * Implement sorting algorithms such as Insertion Sort, Merge Sort, and Quick Sort and understand the performance trade-offs between them * See how to implement various binary trees, B-Tree, and Splay Trees * Perform advanced searching methods using Red-Black trees, AVL trees, and Trie trees, and take a look at several substring search algorithms * Get to know about the data structures used in graphs and how to implement graphs such as depth-first search, breadth-first search, directed graphs, spanning tree, and shortest path * Explore algorithm efficiency and see how to measure it In Detail Apple's Swift language has expressive features that are familiar to those working with modern functional languages, but also provides backward support for Objective-C and Apple's legacy frameworks. These features are attracting many new developers to start creating applications for OS X and iOS using Swift. Designing an application to scale while processing large amounts of data or provide fast and efficient searching can be complex, especially running on mobile devices with limited memory and bandwidth. Learning about best practices and knowing how to select the best data structure and algorithm in Swift is crucial to the success of your application and will help ensure your application is a success. That's what this book will teach you. Starting at the beginning, this book will cover the basic data structures and Swift types, and introduce asymptotic analysis. You'll learn about the standard library collections and bridging between Swift and Objective-C collections. You will see how to implement advanced data structures, sort algorithms, work with trees, advanced searching methods, use graphs, and performance and algorithm efficiency. You'll also see how to choose the perfect algorithm for your problem. Style and approach This easy-to-follow yet comprehensive guide can either be read from beginning to end, or depending on your current knowledge level, you can jump to the specific chapter that interests you. Each chapter topic starts with an introduction to the topic and algorithm before moving on to the hands-on implementation and analysis.
Learning ArcGIS Runtime SDK for .NET
by Ron VincentThis book is for .NET developers who want to learn to build native Geographic Information System (GIS) application.
Unreal Engine 4 Scripting with C++ Cookbook
by William Sherif Stephen WhittleGet the best out of your games by scripting them using UE4 About This Book * A straightforward and easy-to-follow format * A selection of the most important tasks and problems * Carefully organized instructions to solve problems efficiently * Clear explanations of what you did * Solutions that can be applied to solve real-world problems Who This Book Is For This book is intended for game developers who understand the fundamentals of game design and C++ and would like to incorporate native code into the games they make with Unreal. They will be programmers who want to extend the engine, or implement systems and Actors that allow designers control and flexibility when building levels. What You Will Learn * Build function libraries (Blueprints) containing reusable code to reduce upkeep * Move low-level functions from Blueprint into C++ to improve performance * Abstract away complex implementation details to simplify designer workflows * Incorporate existing libraries into your game to add extra functionality such as hardware integration * Implement AI tasks and behaviors in Blueprints and C++ * Generate data to control the appearance and content of UI elements In Detail Unreal Engine 4 (UE4) is a complete suite of game development tools made by game developers, for game developers. With more than 100 practical recipes, this book is a guide showcasing techniques to use the power of C++ scripting while developing games with UE4. It will start with adding and editing C++ classes from within the Unreal Editor. It will delve into one of Unreal's primary strengths, the ability for designers to customize programmer-developed actors and components. It will help you understand the benefits of when and how to use C++ as the scripting tool. With a blend of task-oriented recipes, this book will provide actionable information about scripting games with UE4, and manipulating the game and the development environment using C++. Towards the end of the book, you will be empowered to become a top-notch developer with Unreal Engine 4 using C++ as the scripting language. Style and approach A recipe based practical guide to show you how you can leverage C++ to manipulate and change your game behavior and game design using Unreal Engine 4.
Object-Oriented JavaScript - Third Edition
by Ved Antani Stoyan StefanovLearn everything you need to know about object-oriented JavaScript with this comprehensive guide. Enter the world of cutting-edge development! About This Book • This book has been updated to cover all the new object-oriented features introduced in ECMAScript 6 • It makes object-oriented programming accessible and understandable to web developers • Write better and more maintainable JavaScript code while exploring interactive examples that can be used in your own scripts Who This Book Is For This book is ideal for new to intermediate JavaScript developers who want to prepare themselves for web development problems solved by object-oriented JavaScript! What You Will Learn • Apply the basics of object-oriented programming in the JavaScript environment • Use a JavaScript Console with complete mastery • Make your programs cleaner, faster, and compatible with other programs and libraries • Get familiar with Iterators and Generators, the new features added in ES6 • Find out about ECMAScript 6's Arrow functions, and make them your own • Understand objects in Google Chrome developer tools and how to use them • Use a mix of prototypal inheritance and copying properties in your workflow • Apply reactive programming techniques while coding in JavaScript In Detail JavaScript is an object-oriented programming language that is used for website development. Web pages developed today currently follow a paradigm that has three clearly distinguishable parts: content (HTML), presentation (CSS), and behavior (JavaScript). JavaScript is one important pillar in this paradigm, and is responsible for the running of the web pages. This book will take your JavaScript skills to a new level of sophistication and get you prepared for your journey through professional web development. Updated for ES6, this book covers everything you will need to unleash the power of object-oriented programming in JavaScript while building professional web applications. The book begins with the basics of object-oriented programming in JavaScript and then gradually progresses to cover functions, objects, and prototypes, and how these concepts can be used to make your programs cleaner, more maintainable, faster, and compatible with other programs/libraries. By the end of the book, you will have learned how to incorporate object-oriented programming in your web development workflow to build professional JavaScript applications. Style and approach Filled with practical instructions, the book shows you how to implement object-oriented features of JavaScript in the real world. The to-the-point nature of the book will benefit developers who are looking for a fast-paced guide to learn object-oriented JavaScript.
Spark for Data Science
by Bikramaditya Singhal Srinivas DuvvuriAnalyze your data and delve deep into the world of machine learning with the latest Spark version, 2.0 About This Book * Perform data analysis and build predictive models on huge datasets that leverage Apache Spark * Learn to integrate data science algorithms and techniques with the fast and scalable computing features of Spark to address big data challenges * Work through practical examples on real-world problems with sample code snippets Who This Book Is For This book is for anyone who wants to leverage Apache Spark for data science and machine learning. If you are a technologist who wants to expand your knowledge to perform data science operations in Spark, or a data scientist who wants to understand how algorithms are implemented in Spark, or a newbie with minimal development experience who wants to learn about Big Data Analytics, this book is for you! What You Will Learn * Consolidate, clean, and transform your data acquired from various data sources * Perform statistical analysis of data to find hidden insights * Explore graphical techniques to see what your data looks like * Use machine learning techniques to build predictive models * Build scalable data products and solutions * Start programming using the RDD, DataFrame and Dataset APIs * Become an expert by improving your data analytical skills In Detail This is the era of Big Data. The words 'Big Data' implies big innovation and enables a competitive advantage for businesses. Apache Spark was designed to perform Big Data analytics at scale, and so Spark is equipped with the necessary algorithms and supports multiple programming languages. Whether you are a technologist, a data scientist, or a beginner to Big Data analytics, this book will provide you with all the skills necessary to perform statistical data analysis, data visualization, predictive modeling, and build scalable data products or solutions using Python, Scala, and R. With ample case studies and real-world examples, Spark for Data Science will help you ensure the successful execution of your data science projects. Style and approach This book takes a step-by-step approach to statistical analysis and machine learning, and is explained in a conversational and easy-to-follow style. Each topic is explained sequentially with a focus on the fundamentals as well as the advanced concepts of algorithms and techniques. Real-world examples with sample code snippets are also included.
Learning VMware vRealize Automation
by Sriram RajendranLearn the fundamentals of vRealize Automation to accelerate the delivery of your IT services About This Book * Learn to install the vRealize Automation product in a distributed architecture using a load balancer * Plan backup and recovery strategies for every vRealize automation component * Use vRealize Automation to manage applications and improve operational efficiency using this simple and intuitive guide Who This Book Is For This book is for anyone who wants to start their journey with vRealize Automation. It is your one-stop instruction guide to installing and configuring a distributed setup using NSX load balancer. Regardless of whether or not you have used vRealize Automation before, following the steps provided in each chapter will get you started with the product. What You Will Learn * Understand the basic building blocks of vRealize Automation before embarking on the journey of installation * Familiarize yourself with the requirements and steps that need to be performed during the first phase of the distributed installation * Carry out a functional validation of the first phase of installation before completing the installation * Build a blueprint for vSphere endpoint, an essential step for a successful deployment of a service catalog * Create, configure, and deploy tenants, endpoints, blueprints, and the service catalog * Get to grips with the failover process for all components in vRealize Automation * Learn to configure the NSX loadbalancer for vRealize Orchestrator for high availability * Leverage ASD to develop XaaS (Anything as a Service) in vRealize Automation to deliver valuable competence In Detail With the growing interest in Software Defined Data Centers (SDDC), vRealize Automation offers data center users an organized service catalog and governance for administrators. This way, end users gain autonomy while the IT department stays in control, making sure security and compliance requirements are met. Learning what each component does and how they dovetail with each other will bolster your understanding of vRealize Automation. The book starts off with an introduction to the distributed architecture that has been tested and installed in large scale deployments. Implementing and configuring distributed architecture with custom certificates is unarguably a demanding task, and it will be covered next. After this, we will progress with the installation. A vRealize Automation blueprint can be prepared in multiple ways; we will focus solely on vSphere endpoint blueprint. After this, we will discuss the high availability configuration via NSX loadbalancer for vRealize Orchestrator. Finally, we end with Advanced Service Designer, which provides service architects with the ability to create advanced services and publish them as catalog items. Style and approach This book takes a step-by-step approach, is explained in a conversational and easy-to-follow style, and includes ample screenshots . Each topic is explained sequentially through planning, preparing, installing, configuring, and validating of all vRealize Automation's components.