Testable JavaScript

By Mark Ethan Trostler

One ability that’s crucial for any expert JavaScript developer is the facility to write down testable code. This publication indicates you what writing and retaining testable JavaScript for the buyer- or server-side truly involves, even if you’re making a new software or rewriting legacy code.

From ways to lessen code complexity to unit checking out, code insurance, debugging, and automation, you’ll research a holistic method for writing JavaScript code that you just and your colleagues can simply repair and hold going ahead. checking out JavaScript code is complex. This booklet is helping skilled JavaScript builders easily the method considerably.

  • Get an outline of Agile, test-driven improvement, and behavior-driven development
  • Use styles from static languages and standards-based JavaScript to lessen code complexity
  • Learn some great benefits of event-based architectures, together with modularity, unfastened coupling, and reusability
  • Explore instruments for writing and working unit assessments on the practical and alertness level
  • Generate code assurance to degree the scope and effectiveness of your tests
  • Conduct integration, functionality, and cargo trying out, utilizing Selenium or CasperJS
  • Use instruments for in-browser, Node.js, cellular, and creation debugging
  • Understand what, while, and the way to automate your improvement processes

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RESTful Rails Development: Building Open Applications and Services

By Silvia Puglisi

The internet is slowly yet definitely altering from a version during which a human reader browses content material on websites to a version within which companies and consumers (not unavoidably people) trade info. and due to this, writer Silvia Puglisi explains, it makes extra experience to construct structures rather than simply items or purposes. structures are like ecosystems interconnecting various functions, providers, clients, builders, and companions, and provide many benefits.

In this e-book, you will layout and enhance Representational nation move (REST) systems in Rails. you are going to commence with an creation to Ruby on Rails, after which movement fast via new thoughts. on the finish of every bankruptcy, you will have discovered whatever new approximately construction and organically extending a multi-service platform spanning various devices—and could have had a few enjoyable within the approach. via the tip of the e-book you will know the way to construct an structure composed of alternative providers getting access to shared assets via a suite of taking part APIs and applications.

  • Explore the fundamentals of leisure and HTTP, together with relaxation structure and the position of hypermedia
  • Get to understand Rails and Ruby on Rails
  • Learn approximately API improvement and create an API
  • Take a radical examine relaxation, together with Asynchronous relaxation and trying out RESTful services
  • Work with info streams as you map them onto an program UI and combine exterior APIs on your application
  • Learn approximately device-independent development
  • Use facts analytics to acknowledge very important occasions, strengthen key metrics, and tune them
  • Explore a variety of instruments you should use to construct your individual facts analytic platform
  • Learn tips to scale a Rails software successfully
  • Examine privateness and safeguard concerns and the consequences of dealing with and amassing consumer data

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Basic Sensors in iOS: Programming the Accelerometer, Gyroscope, and More

By Alasdair Allan

What quite units the iPhone except laptops and desktops is its use of onboard sensors, together with those who are location-enabled. This concise booklet takes skilled iPhone and Mac builders on a close journey of iPhone and iPad by means of explaining how those sensors paintings, and what they're in a position to doing.

With this ebook, you will construct pattern purposes for every sensor, and examine hands-on easy methods to benefit from the knowledge each one sensor produces. you will achieve worthy adventure so you might instantly placed to paintings inside of your personal iOS purposes for the iPhone, iPod contact, and iPad. This ebook is helping you concentration on:

  • Camera: take photos and video, create video thumbnails, customise video, and retailer media to the picture album
  • Audio: use the media picker controller and entry the iPod song library on your personal software, and let your app to checklist and play sampled audio
  • Accelerometer: write an program that makes use of this sensor to figure out gadget orientation
  • Magnetometer: find out how this sensor verifies compass headings
  • Core movement: use this framework to obtain movement information from either the accelerometer and the vibrational gyroscope

    This brief e-book is a part of a suite that would, in addition to new fabric, be compiled right into a greater booklet, iOS Sensor Programming. the opposite books during this assortment are Augmented truth in iOS, Geolocation in iOS, and iOS Sensor Apps with Arduino.

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    Beginning COBOL for Programmers

    By Michael Coughlan

    Beginning COBOL for Programmers is a complete, refined educational and modular abilities reference at the COBOL programming language for proven programmers. This e-book is for you while you are a developer who would favor to—or must—add COBOL in your repertoire. maybe you know the possibilities provided by means of the present COBOL talents problem, or are operating in a undertaking serious firm which keeps legacy COBOL functions. no matter what your scenario, Beginning COBOL for Programmers meets your wishes as a longtime programmer relocating to COBOL.

    Beginning COBOL for Programmers comprises finished insurance of ANS eighty five COBOL good points and methods, together with keep an eye on buildings, names, sequential and direct entry documents, info redefinition, string dealing with, decimal mathematics, subprograms, and the record author. the ultimate bankruptcy encompasses a big advent to object-oriented COBOL.

    Benefiting from over 100 instance courses, you’ll obtain an intensive advent to the middle and complex beneficial properties of the COBOL language and should learn how to follow those via finished and sundry routines. If you have got inherited a few legacy COBOL, you’ll have the capacity to seize the COBOL idioms, comprehend the constructs, and realize what is taking place within the code you’re operating with.

    Today’s firm software builders will locate that COBOL abilities open new—or old—doors, and this large COBOL reference is the ebook that can assist you collect and strengthen your COBOL skills.

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    Jump Start JavaScript

    By Ara Pehlivanian

    Get a leap commence on JavaScript today!

    JavaScript is a key expertise in glossy net improvement, allowing you to craft interactive, usable and interesting studies in your users.

    In only one weekend with this SitePoint booklet, you will learn the way to:

    • Use JavaScript to resolve actual international difficulties: construct kinds, music consumer occasions and craft animations
    • Use JavaScript with HTML5 and CSS3
    • Build a whole JavaScript-powered software from scratch: a job administration application

    Plus you will find how one can use glossy concepts equivalent to Canvas and Ajax.

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    Python and AWS Cookbook

    By Mitch Garnaat

    If you ought to use Amazon internet prone (AWS) for distant computing and garage, Python is a perfect programming language for constructing functions and controlling your cloud-based infrastructure. This cookbook will get you all started with greater than dozen recipes for utilizing Python with AWS, in line with the author’s boto library.

    You’ll locate precise recipes for operating with the S3 garage carrier in addition to EC2, the provider that allows you to layout and construct cloud purposes. every one recipe incorporates a code answer you should use instantly, in addition to a dialogue of why and the way the recipe works. you furthermore mght get exact suggestion for utilizing boto with AWS and different cloud services.

    This book’s recipes contain how you can support you:

    • Launch situations on EC2, and preserve music of them with tags
    • Associate an Elastic IP tackle with an instance
    • Restore a failed Elastic Block shop quantity from a snapshot
    • Store and display screen your personal customized metrics in CloudWatch
    • Create a bucket in S3 to comprise your info objects
    • Reduce the price of storing noncritical data
    • Prevent unintended deletion of knowledge in S3

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    Modular Java: Creating Flexible Applications with Osgi and Spring (Pragmatic Programmers)

    By Craig Walls

    Attack complexity on your Java purposes utilizing Modular Java. This pragmatic advisor introduces you to OSGi and Spring Dynamic Modules, of the main compelling frameworks for Java modularization. pushed by way of real-world examples, this ebook will equip you with the knowledge you must increase Java purposes which are composed of smaller, loosely coupled, hugely cohesive modules.

    the key weapon for attacking complexity in any venture is to damage it down into smaller, cohesive, and extra simply digestible items. With Modular Java, you could simply boost purposes which are extra versatile, testable, maintainable, and comprehensible.

    Modular Java is a practical advisor to constructing modular functions utilizing OSGi, the framework for dynamic modularity in Java, and Spring Dynamic Modules, an OSGi extension to the Spring Framework. you will commence with the fundamentals yet fast ramp up, developing loosely coupled modules that put up and devour prone, and you may see how one can compose them into higher purposes. alongside the way in which, you are going to follow what you study as you construct an entire net program that's made of a number of OSGi modules, utilizing Spring-DM to cord these modules together.

    Modular Java is full of advice and methods that might make you a more adept OSGi and Spring-DM developer. built with the information won from this e-book, you can still enhance functions which are extra powerful and agile.

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    Bandit Algorithms for Website Optimization

    By John Myles White

    When trying to find how one can enhance your web site, how do you opt which adjustments to make? And which adjustments to maintain? This concise booklet exhibits you the way to exploit Multiarmed Bandit algorithms to degree the real-world worth of any differences you're making on your website. writer John Myles White indicates you the way this robust type of algorithms can help develop site site visitors, convert viewers to clients, and bring up many different measures of success.

    This is the 1st developer-focused publication on bandit algorithms, which have been formerly defined purely in learn papers. You’ll speedy research the advantages of a number of easy algorithms—including the epsilon-Greedy, Softmax, and top self belief certain (UCB) algorithms—by operating via code examples written in Python, that you may simply adapt for deployment by yourself website.

    • Learn the fundamentals of A/B testing—and realize while it’s greater to take advantage of bandit algorithms
    • Develop a unit checking out framework for debugging bandit algorithms
    • Get extra code examples written in Julia, Ruby, and JavaScript with supplemental on-line materials

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    Beginning C for Arduino: Learn C Programming for the Arduino (Technology in Action)

    By Jack Purdum

    Beginning C for Arduino is written if you happen to haven't any earlier event with microcontrollers or programming yet wish to test and study either. This e-book introduces you to the c program languageperiod, reinforcing every one programming constitution with an easy demonstration of how you should use C to manage the Arduino family members of microcontrollers. writer Jack Purdum makes use of an enticing type to coach strong programming concepts utilizing examples which were honed in the course of his 25 years of collage teaching.   

    Beginning C for Arduino will teach you:  

    • The interval
    • How to take advantage of C to regulate a microcontroller and similar
    • How to increase C by way of developing your individual library exercises

    During the process the publication, you will learn the fundamentals of programming, corresponding to operating with information forms, making judgements, and writing regulate loops. you will then development onto the various trickier features of C programming, resembling utilizing tips successfully, operating with the C preprocessor, and tackling dossier I/O. every one bankruptcy ends with a chain of workouts and evaluation inquiries to try out your wisdom and toughen what you've got learned.

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    Jump Start Rails

    By Andy Hawthorne

    Jump begin Rails offers you a enjoyable and but useful advent to Rails, an extremely renowned framework that makes it attainable to fast improve awfully robust net purposes with Ruby. This brief e-book covers Rails four, the newest model of the framework, and whereas it is not meant to be a very entire Rails consultant or an in-depth Ruby educational, it is going to fast get you on top of things with Rails and provides you the boldness to begin experimenting in your own.

    The publication is equipped round a real-life instance undertaking: a private portfolio website. it is a enjoyable and simply comprehensible venture that's used to illustrate the ideas defined within the booklet in a pragmatic way.

    This is a transparent, approachable and intensely easy-to-follow booklet that would get you to to hurry with Rails in no time.

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