Javascript for Java Developers
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Changing the Game: Monthly Technology Briefs
the way we see it Changing the Game: Monthly Technology Briefs April 2011 Tablets and Smartphones: Levers of Disruptive Change Read the Capgemini Chief Technology Officers’ Blog at www.capgemini.com/ctoblog Public the way we see it Tablets and Smartphones: Levers of Disruptive Change All 2010 shipment reports tell the same story - of an incredible increase in the shipments of both Smartphones and Tablets, and of a corresponding slowdown in the conventional PC business. Smartphone sales exceeded even the most optimis- tic forecasts of experts, with a 74 percent increase from the previous year – around a battle between Apple and Google Android for supremacy at the expense of traditional leaders Nokia and RIM BlackBerry. It was the same story for Tablets with 17.4 million units sold in 2010 led by Apple, but once again with Google Android in hot pursuit. Analyst predictions for shipments suggest that the tablet market will continue its exponential growth curve to the extent that even the usually cautious Gartner think that by 2013 there will be as many Tablets in use in an enterprise as PCs with a profound impact on the IT environment. On February 7, as part of the Gartner ‘First Thing Monday’ series under the title ‘The Digital Natives are Restless, The impending Revolt against the IT Nanny State’ Gartner analyst Jim Shepherd stated; “I am regularly hearing middle managers and even senior executives complaining bit- terly about IT departments that are so focussed on the global rollout of some monolith- ic solution that they have no time for new and innovative technologies that could have an immediate impact on the business. -
Pragmatic Guide to Javascript
www.allitebooks.com What Readers Are Saying About Pragmatic Guide to J a v a S c r i p t I wish I had o w n e d this book when I first started out doing JavaScript! Prag- matic Guide to J a v a S c r i p t will take you a big step ahead in programming real-world JavaScript by showing you what is going on behind the scenes in popular JavaScript libraries and giving you no-nonsense advice and back- ground information on how to do the right thing. W i t h the condensed years of e x p e r i e n c e of one of the best JavaScript developers around, it’s a must- read with great reference to e v e r y d a y JavaScript tasks. Thomas Fuchs Creator of the script.aculo.us framework An impressive collection of v e r y practical tips and tricks for getting the most out of JavaScript in today’s browsers, with topics ranging from fundamen- tals such as form v a l i d a t i o n and JSON handling to application e x a m p l e s such as mashups and geolocation. I highly recommend this book for anyone wanting to be more productive with JavaScript in their web applications. Dylan Schiemann CEO at SitePen, cofounder of the Dojo T o o l k i t There are a number of JavaScript books on the market today, b u t most of them tend to focus on the new or inexperienced JavaScript programmer. -
Opera Software the Best Browsing Experience on Any Device
Opera Software The best browsing experience on any device The best Internet experience on any device Web Standards for the Future – Bruce Lawson, Opera.com • Web Evangelist, Opera • Tech lead, Law Society & Solicitors Regulation Authority (2004-8) • Author 2 books on Web Standards, edited 2 • Committee member for British Standards Institution (BSI) for the new standard for accessible websites • Member of Web Standards Project: Accessibility Task Force • Member of W3C Mobile Best Practices Working Group Web Standards for the Future – Bruce Lawson, Opera.com B.A., Honours English Literature and Language with Drama Theresa is blind But she can use the Web if made with standards The big picture WWW The big picture Western Western Web A web (pre)history • 1989 TBL proposes a project • 1992 <img> in Mosaic beta. Now 99.57% (MAMA) • 1994 W3C started at MIT • 1996 The Browser Wars • 1999 WAP, Web Content Accessibility Guidelines (WCAG) • 2000 Flash Modern web history • 2000-ish .com Crash - Time to grow up... • 2002 Opera Mobile with Small Screen Rendering • 2005 WHAT-WG founded, W3C Mobile Web Initiative starts • 2007 W3C adopts WHAT-WG spec as basis for HTML 5 • January 22, 2008 First public working draft of HTML 5 Standards at Opera • 25 employees work on standards • Mostly at W3C - a big player • Working on many standards • Bringing new work to W3C • Implementing Standards properly (us and you!) (Web Standards Curriculum www.opera.com/wsc) Why standards? The Web works everywhere - The Web is the platform • Good standards help developers: validate; separate content and presentation - means specialisation and maintainability. -
From Perl to Python
From Perl to Python Fernando Pineda 140.636 Oct. 11, 2017 version 0.1 3. Strong/Weak Dynamic typing The notion of strong and weak typing is a little murky, but I will provide some examples that provide insight most. Strong vs Weak typing To be strongly typed means that the type of data that a variable can hold is fixed and cannot be changed. To be weakly typed means that a variable can hold different types of data, e.g. at one point in the code it might hold an int at another point in the code it might hold a float . Static vs Dynamic typing To be statically typed means that the type of a variable is determined at compile time . Type checking is done by the compiler prior to execution of any code. To be dynamically typed means that the type of variable is determined at run-time. Type checking (if there is any) is done when the statement is executed. C is a strongly and statically language. float x; int y; # you can define your own types with the typedef statement typedef mytype int; mytype z; typedef struct Books { int book_id; char book_name[256] } Perl is a weakly and dynamically typed language. The type of a variable is set when it's value is first set Type checking is performed at run-time. Here is an example from stackoverflow.com that shows how the type of a variable is set to 'integer' at run-time (hence dynamically typed). $value is subsequently cast back and forth between string and a numeric types (hence weakly typed). -
Declare New Function Javascript
Declare New Function Javascript Piggy or embowed, Levon never stalemating any punctuality! Bipartite Amory wets no blackcurrants flagged anes after Hercules supinate methodically, quite aspirant. Estival Stanleigh bettings, his perspicaciousness exfoliating sopped enforcedly. How a javascript objects for mistakes to retain the closure syntax and maintainability of course, written by reading our customers and line? Everything looks very useful. These values or at first things without warranty that which to declare new function javascript? You declare a new class and news to a function expressions? Explore an implementation defined in new row with a function has a gas range. If it allows you probably work, regular expression evaluation but mostly warszawa, and to retain the explanation of. Reimagine your namespaces alone relate to declare new function javascript objects for arrow functions should be governed by programmers avoid purity. Js library in the different product topic and zip archives are. Why is selected, and declare a superclass method decorators need them into functions defined by allocating local time. It makes more sense to handle work in which support optional, only people want to preserve type to be very short term, but easier to! String type variable side effects and declarations take a more situations than or leading white list of merchantability or a way as explicit. You declare many types to prevent any ecmascript program is not have two categories by any of parameters the ecmascript is one argument we expect. It often derived from the new knowledge within the string, news and error if the function expression that their prototype. -
Scala by Example (2009)
Scala By Example DRAFT January 13, 2009 Martin Odersky PROGRAMMING METHODS LABORATORY EPFL SWITZERLAND Contents 1 Introduction1 2 A First Example3 3 Programming with Actors and Messages7 4 Expressions and Simple Functions 11 4.1 Expressions And Simple Functions...................... 11 4.2 Parameters.................................... 12 4.3 Conditional Expressions............................ 15 4.4 Example: Square Roots by Newton’s Method................ 15 4.5 Nested Functions................................ 16 4.6 Tail Recursion.................................. 18 5 First-Class Functions 21 5.1 Anonymous Functions............................. 22 5.2 Currying..................................... 23 5.3 Example: Finding Fixed Points of Functions................ 25 5.4 Summary..................................... 28 5.5 Language Elements Seen So Far....................... 28 6 Classes and Objects 31 7 Case Classes and Pattern Matching 43 7.1 Case Classes and Case Objects........................ 46 7.2 Pattern Matching................................ 47 8 Generic Types and Methods 51 8.1 Type Parameter Bounds............................ 53 8.2 Variance Annotations.............................. 56 iv CONTENTS 8.3 Lower Bounds.................................. 58 8.4 Least Types.................................... 58 8.5 Tuples....................................... 60 8.6 Functions.................................... 61 9 Lists 63 9.1 Using Lists.................................... 63 9.2 Definition of class List I: First Order Methods.............. -
Lambda Expressions
Back to Basics Lambda Expressions Barbara Geller & Ansel Sermersheim CppCon September 2020 Introduction ● Prologue ● History ● Function Pointer ● Function Object ● Definition of a Lambda Expression ● Capture Clause ● Generalized Capture ● This ● Full Syntax as of C++20 ● What is the Big Deal ● Generic Lambda 2 Prologue ● Credentials ○ every library and application is open source ○ development using cutting edge C++ technology ○ source code hosted on github ○ prebuilt binaries are available on our download site ○ all documentation is generated by DoxyPress ○ youtube channel with over 50 videos ○ frequent speakers at multiple conferences ■ CppCon, CppNow, emBO++, MeetingC++, code::dive ○ numerous presentations for C++ user groups ■ United States, Germany, Netherlands, England 3 Prologue ● Maintainers and Co-Founders ○ CopperSpice ■ cross platform C++ libraries ○ DoxyPress ■ documentation generator for C++ and other languages ○ CsString ■ support for UTF-8 and UTF-16, extensible to other encodings ○ CsSignal ■ thread aware signal / slot library ○ CsLibGuarded ■ library for managing access to data shared between threads 4 Lambda Expressions ● History ○ lambda calculus is a branch of mathematics ■ introduced in the 1930’s to prove if “something” can be solved ■ used to construct a model where all functions are anonymous ■ some of the first items lambda calculus was used to address ● if a sequence of steps can be defined which solves a problem, then can a program be written which implements the steps ○ yes, always ● can any computer hardware -
PHP Advanced and Object-Oriented Programming
VISUAL QUICKPRO GUIDE PHP Advanced and Object-Oriented Programming LARRY ULLMAN Peachpit Press Visual QuickPro Guide PHP Advanced and Object-Oriented Programming Larry Ullman Peachpit Press 1249 Eighth Street Berkeley, CA 94710 Find us on the Web at: www.peachpit.com To report errors, please send a note to: [email protected] Peachpit Press is a division of Pearson Education. Copyright © 2013 by Larry Ullman Acquisitions Editor: Rebecca Gulick Production Coordinator: Myrna Vladic Copy Editor: Liz Welch Technical Reviewer: Alan Solis Compositor: Danielle Foster Proofreader: Patricia Pane Indexer: Valerie Haynes Perry Cover Design: RHDG / Riezebos Holzbaur Design Group, Peachpit Press Interior Design: Peachpit Press Logo Design: MINE™ www.minesf.com Notice of Rights All rights reserved. No part of this book may be reproduced or transmitted in any form by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. For information on getting permission for reprints and excerpts, contact [email protected]. Notice of Liability The information in this book is distributed on an “As Is” basis, without warranty. While every precaution has been taken in the preparation of the book, neither the author nor Peachpit Press shall have any liability to any person or entity with respect to any loss or damage caused or alleged to be caused directly or indirectly by the instructions contained in this book or by the computer software and hardware products described in it. Trademarks Visual QuickPro Guide is a registered trademark of Peachpit Press, a division of Pearson Education. Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks. -
BTEC 2012 Specification
Diploma in Digital Applications Specification Pearson Edexcel Level 2 Diploma in Digital Applications (DiDA) From October 2014 Contents Qualification title and Qualification Number 1 Introduction 2 Key features 2 Rationale 2 Aims 3 Progression 3 Recommended prior knowledge, skills and understanding 3 Qualification structure 4 Pearson Edexcel Level 2 Diploma in Digital Applications (DiDA) 4 Assessment Objectives 4 Assessment Objective weightings for the Pearson Edexcel Level 2 Diploma in Digital Applications (DiDA) 5 Assessment summary 6 Availability of assessment 6 Unit structure 7 Units 9 Unit 1: Developing Web Products 11 Unit 2: Creative Multimedia 21 Unit 3: Artwork and Imaging 41 Unit 4: Game Making 61 Unit 5: Coding for the Web 79 Assessment information for the externally assessed unit 90 Sample assessment materials 90 Language of assessment 90 Assessment information for internally assessed units 91 Controls for task setting 91 Controls for task taking 91 Authentication 93 Submission of work to the teacher 93 Marking, standardisation and moderation 93 Security and backups 93 Language of assessment 94 Further information 94 Grading information 95 Qualification awards 95 Grade descriptors 95 Additional information 97 Registration and entry 97 Unit codes 97 Cash-in codes 97 Availability of assessment 98 Resitting of units 98 Awarding and reporting 98 Forbidden combinations and classification code 98 Access and recruitment 99 Access to qualifications for students with disabilities or specific needs 100 Further information and useful publications 101 Teacher support 101 Annexe A: Mapping to Key Stage 4 Computing Programme of Study 103 Annexe B: DiDA and Synoptic Assessment 105 Annexe C: Centre assessor sheets 107 Qualification title and Qualification Number Qualification Pearson Edexcel Level 2 Diploma in Digital title Applications Qualification 601/4650/3 Number (QN) This qualification is on the National Qualifications Framework (NQF). -
Chapter 15. Javascript 4: Objects and Arrays
Chapter 15. JavaScript 4: Objects and Arrays Table of Contents Objectives .............................................................................................................................................. 2 15.1 Introduction .............................................................................................................................. 2 15.2 Arrays ....................................................................................................................................... 2 15.2.1 Introduction to arrays ..................................................................................................... 2 15.2.2 Indexing of array elements ............................................................................................ 3 15.2.3 Creating arrays and assigning values to their elements ................................................. 3 15.2.4 Creating and initialising arrays in a single statement ..................................................... 4 15.2.5 Displaying the contents of arrays ................................................................................. 4 15.2.6 Array length ................................................................................................................... 4 15.2.7 Types of values in array elements .................................................................................. 6 15.2.8 Strings are NOT arrays .................................................................................................. 7 15.2.9 Variables — primitive -
Steps-In-Scala.Pdf
This page intentionally left blank STEPS IN SCALA An Introduction to Object-Functional Programming Object-functional programming is already here. Scala is the most prominent rep- resentative of this exciting approach to programming, both in the small and in the large. In this book we show how Scala proves to be a highly expressive, concise, and scalable language, which grows with the needs of the programmer, whether professional or hobbyist. Read the book to see how to: • leverage the full power of the industry-proven JVM technology with a language that could have come from the future; • learn Scala step-by-step, following our complete introduction and then dive into spe- cially chosen design challenges and implementation problems, inspired by the real-world, software engineering battlefield; • embrace the power of static typing and automatic type inference; • use the dual object and functional oriented natures combined at Scala’s core, to see how to write code that is less “boilerplate” and to witness a real increase in productivity. Use Scala for fun, for professional projects, for research ideas. We guarantee the experience will be rewarding. Christos K. K. Loverdos is a research inclined computer software profes- sional. He holds a B.Sc. and an M.Sc. in Computer Science. He has been working in the software industry for more than ten years, designing and implementing flex- ible, enterprise-level systems and making strategic technical decisions. He has also published research papers on topics including digital typography, service-oriented architectures, and highly available distributed systems. Last but not least, he is an advocate of open source software. -
Introducing HTML5 Second Edition
HTMLINTRODUCING SECOND 5EDITION BRUCE LAWSON REMY SHARP Introducing HTML5, Second Edition Bruce Lawson and Remy Sharp New Riders 1249 Eighth Street Berkeley, CA 94710 510/524-2178 510/524-2221 (fax) Find us on the Web at: www.newriders.com To report errors, please send a note to [email protected] New Riders is an imprint of Peachpit, a division of Pearson Education Copyright © 2012 by Remy Sharp and Bruce Lawson Project Editor: Michael J. Nolan Development Editor: Margaret S. Anderson/Stellarvisions Technical Editors: Patrick H. Lauke (www.splintered.co.uk), Robert Nyman (www.robertnyman.com) Production Editor: Cory Borman Copyeditor: Gretchen Dykstra Proofreader: Jan Seymour Indexer: Joy Dean Lee Compositor: Danielle Foster Cover Designer: Aren Howell Straiger Cover photo: Patrick H. Lauke (splintered.co.uk) Notice of Rights All rights reserved. No part of this book may be reproduced or transmitted in any form by any means, electronic, mechanical, photocopying, recording, or otherwise, without the prior written permission of the publisher. For informa- tion on getting permission for reprints and excerpts, contact permissions@ peachpit.com. Notice of Liability The information in this book is distributed on an “As Is” basis without war- ranty. While every precaution has been taken in the preparation of the book, neither the authors nor Peachpit shall have any liability to any person or entity with respect to any loss or damage caused or alleged to be caused directly or indirectly by the instructions contained in this book or by the com- puter software and hardware products described in it. Trademarks Many of the designations used by manufacturers and sellers to distinguish their products are claimed as trademarks.