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JavaScript
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JavaScript, Fourth Edition is designed as a guide for beginning programmers to develop Web applications using the JavaScript programming language. It introduces a variety of techniques, focusing on what students need to know to start adding JavaScript to their Web pages. In each chapter, students perform tasks that focus on a particular technique required for building and creating JavaScript programs. The examples and exercises in this book will help students learn the basics of how to use JavaScript with well-formed Web pages, including how to manipulate the browser object model, validate forms, use object-oriented techniques, and learn how to trace and resolve errors in JavaScript programs, to name a few. Advanced topics include how to manage state information, use the Dynamic Object Model (DOM), create Dynamic HTML (DHTML), update Web pages with AJAX, and create server-side scripts.
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JavaScript and Ajax for the Web: Visual QuickStart Guide (7th Edition)
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This is the eBook version of the printed book. This task-based, visual reference guide has been fully revised. It uses step-by-step instructions and plenty of screenshots to give beginning and intermediate Web designers what they need to know to learn JavaScript. Readers can start from the beginning to get a tour of the programming language, or look up specific tasks to learn just what they need to know. In this updated seventh edition, readers will find new information on Ajax design and modern coding techniques.
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Pro Android Web Apps: Develop for Android using HTML5, CSS3 & JavaScript (Books for Professionals by Professionals)
Price : $44.99 $27.75
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Developing applications for Android and other mobile devices using web technologies is now well within reach. When the capabilities of HTML5 are combined with CSS3 and JavaScript, web application developers have an opportunity to develop compelling mobile applications using familiar tools. Not only is it possible to build mobile web apps that feel as good as native apps, but to also write an application once and have it run a variety of different devices.
While the HTML5 specification is still evolving, there is a lot that can be used right now to build mobile web apps. Mobile web apps are now starting to provide many of the features that were once only available to native-language-based apps in Java, Objective-C, etc. Pro Android Web Apps teaches developers already familiar with web application development, how to code and structure a web app for use on the Android mobile platform. - Understand both the why and how of mobile web app development, focusing on the Android platform.
- Learn how to structure mobile web apps through a number of practical, real-world application examples.
- Discover what cloud platforms such as Google AppEngine have to offer Android web apps, for both hosting web apps and providing device to cloud data synchronization solutions.
- Get a real picture of the status of HTML5 on Android and other mobile devices, including some things to watch out for when building your own applications.
- Understand the capabilities of the web application stack, and how to complement those with native bridging frameworks such as PhoneGap to access native features of the device.
- Gain an understanding of the different UI frameworks that are available for building mobile web apps.
- Learn how to include mapping and leverage location-based services in mobile web apps to create engaging mobile experiences.
- Enable social integration with your Android web app and gain access to millions of potential users.
After reading this book, you will not only have a greater understanding of the world of web apps on Android, but also how to leverage additional tools and frameworks to increase the reach of your mobile web apps. Additionally, through the practical samples in the book you will have been given solid exposure of where both the opportunities and challenges lie when building mobile apps the web way. What you’ll learn- What Android web apps can do, and when to use web development rather than native development to create an application.
- How to use existing JavaScript and CSS frameworks to create rich mobile user interfaces.
- When to use HTML5 and when to use a native bridging framework to access native Android functionality.
- Connext with cloud services and APIs to build engaging location based services and games.
- Enable social integration with your Android web app and gain access to millions of potential users.
Who this book is for This book is targeted at web developers looking to transfer their skills over to mobile application development. Readers will understand that Android is continuing to gain momentum in the marketplace and will want to build an application specifically for that platform. They will have a strong desire to use web technologies rather than the native tools to build applications, either due to personal taste or to gain cross-platform mobile portability for the majority of their application code. Table of Contents- Getting Started
- Building a Mobile HTML Entry Form
- HTML5 Storage APIs
- Constructing a Multipage App
- Synchronizing with the Cloud
- Competing with Native Apps
- Exploring Interactivity
- Location Based Services and Mobile Mapping
- Native Bridging with PhoneGap
- Integrating with Social APIs
- Mobile UI Frameworks Compared
- Polishing and Packaging an App for Release
- The Future of Mobile Computing
- Appendix: Debugging Android Web Apps
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JavaScript and AJAX For Dummies
Price : $29.99 $11.97
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Learn to use these powerful tools together and build Web sites that work If you want to build Web pages that offer real value to your site's visitors, JavaScript and AJAX are top tools for the job. Even if you're new to Web programming, this book helps you create sites any designer will admire. With easy-to-understand steps and an emphasis on free tools, you'll be able to jump right into building a site using the same techniques as the pros. - Down to basics — learn your way around JavaScript and choose an editor and test browser
Manage complexity — use functions, arrays, and objects to create more sophisticated programs Page magic — discover how to control what happens on your pages, animate objects, and put pages in motion Get beautiful — Use the jQuery User Interface library to add sliders, tabbed interfaces, and custom dialogs to a site Come clean with AJAX — build AJAX requests into your programs, use jQuery, and work with AJAX data
Open the book and find: - How to choose a test browser
How to discuss string concatenation with a straight face Tips for debugging your code How to add useful information to a dropdown list Why AJAX connections should be asynchronous The exciting possibilities of the jQuery library How to use the Aptana editor Online resources for JavaScript programmers
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Pro iOS Web Design and Development: HTML5, CSS3, and JavaScript with Safari
Price : $44.99 $28.08
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With Pro iOS Web Design and Development, you’ll design websites and develop web applications for iPhone and iPad using web standards deployed with Apple's Safari browser. Utilizing the very latest web and mobile technologies and releases, this book shows every web professional how to use HTML5 to do the heavy lifting, CSS3 to create the look and feel, and JavaScript to add program logic to their mobile sites and Web applications. In addition, you’ll learn how to address the specific features made available through Apple's iOS, especially with regard to designing Web-based touch-screen interfaces. Pro iOS Web Design and Development will help you deliver rich mobile user experiences without compromise by optimizing your sites for WebKit and Safari, the de facto standard for the iPhone, iPad, and iPod touch. What you’ll learn- Design an optimal website for the iPhone, iPad, and iPod touch.
- Use web standards to develop professional sites on Apple’s key platforms and see why this is important for Web developers and designers.
- Take advantage of Apple’s multi-touch screen technology in your Web apps, maximizing user experience and accessibility.
- Carry out usability testing for mobile websites and Web apps.
- Define an agile project flow optimized for mobile development.
- Use a cognitive approach to UI design using the laws of perception, color psychology theory, and the concepts behind positive and negative space.
Who this book is for Web designers who are interested in mobile Web design and/or mobile Web development; desktop developers who are interested in mobile Web application development; or any Web professional who wants to learn how to design and develop for the iPhone, iPad, and iPod touch. Table of Contents- Think Touch Mobile
- Design Touch Mobile
- Develop Touch Mobile
- User Interface Design for Mobile Touch Devices
- iPhone UI Design: Think Simple
- iPad UI Design: Think Inverted
- Web Standards for WebKit—Maximizing MobileSafari
- Creating WebApps—Mobile Application Development
- Working in Apple's Native Mobile Environments
- Optimizing WebApps
- Testing iPhone and iPad WebApps
- Maximizing the Market for WebApps
- Looking Beyond the Mobile Web to Ubiquitous Computing
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Questions & Answers
Question : How do I make my javascript work for youtube?
I recently downloaded firefox and youtube no longer works on my laptop. I downloaded the most recent flash player and I checked to see that the javascript was turned on and it is. I looked it up and those were the two suggestions everyone seemed to have, but its not working. What do I do?
Answer:
If you keep getting "HELLO, YOU EITHER HAVE JAVASCRIPT TURNED OFF OR AN OLD VERSION OF ADOBE'S FLASH PLAYER....GET THE LATEST FLASH PLAYER":don't bother downloading and re-installing the latest Flash over and over and over again.You will get absolutely nowhere doing that, because that is only adding to the problem.There can really be only 3 possibilities:1) something is wrong with YouTube2) something is wrong with your cache3) something is wrong with your Flash1) YOUTUBE:Your problem may fix itself within a couple hours, or by thenext day, because YouTube often "shuts down" a bunch oftheir own servers every single day without warning anybody, in order to update all kinds of stuff. During those occasions, it's really YouTube's data transmissions of "Java" or "Flash"that are poor -- not your reception of it.2) CACHE:If the following day your YouTube is still stuck and showingyou those awful "JavaScript" and "Flash Player" messages, it's possible that your sub-directories of "temporary internet files" and "cache" memory are full, and can't take anymore.This typically results in videos being totally unable to bufferand make it onto your computer screen. "Temporary internet files" are 1000s of tiny bits of websitespermanently put on your computer's hard-drive. They'll stay there forever and ever, gradually plugging up your computer much like hair slowly clogs a sink drain, until you get rid ofthem once and for all (or at least everytime things go awry).Because your computer now has such little space in which to "cache" a video, YouTube will mistakenly think that yourJavaScript is off or that your Flash player (unable to absorbany more videos) is old -- meaning Flash 7 or older.The solution to all that is to exit YouTube (but not your web browser), then clear your "cache" of all its "TIFs", "cookies"and "history". (See below.) After that, shutdown and reboot.3) FLASH:Nothing about watching YouTube has really changed in thepast 2 years. (Technically, you could still even use Flash 8if you wanted to.) It looks like the newest Flash players arecausing many YouTubers a whole lot of grief, especially all 8 variations of version 10.It's absolutely nuts that there's 10.0.525, 10.1.218, 10.2.26,10.2.54, 10.12.10, 10.12.36, 10.15.3 and 10.22.87. Usuallymost updates are good for only 1 thing:...software conflicts.I have never strayed away from 9.47, and there are a bunchof "flashers" who still live by 9.45. Think of those 2 Flasheslike Windows XP compared to Vista. Please have a look atthe "Asker's" response to this other "Best Answer" of mine:http://answers.yahoo.com/question/index?qid=20081125075929AABZpVSIf that seems interesting to you, here is the appropriate link:http://www.oldapps.com/flash_player.php?old_flash_player=14Note 1: if you've got Google Web Accelerator or somethingsimilar to it...dump it, burn it, trash it, disable it, uninstall it, -- do everything you can to get rid of it. GWA conflicts with YouTube. Clicking "Don't Accelerate This Website" will nothelp you whatsoever. Also, most "Messenger" applicationshave a way of mucking up YouTube.Note 2: longer videos may require "Flash" and "Shockwave"in order to play properly. Other than that, avoid those sales pitches that some Yahooers may be shilling, because they are really disguised salespeople & peddlers. Their answershave nothing to do with your question, and their wares mayactually worsen your problem. Besides, what kind of idioticanswer is "Despite the fact you can't even watch or access videos, buy our downloader." [my paraphrase]Note 3: a very odd fix that once worked for me was alteringthe URL from "www.youtube.com" to simply "youtube.com"(or you could even try "ca.youtube.com").Note 4: there's always the strange possibility that you mayhave gone through the whole process of downloading Flash, BUT DID YOU ACTUALLY INSTALL IT? If you have Firefox,did you "enable" the Flash "add-on"?I hope that my information proves to be quite helpful to you.Internet Explorer 6:→ Tools → Internet Options → Delete Cookies → OK→ Delete Files → OK→ Clear History → Yes → OKInternet Explorer 7:→ Tools → Internet Options → Delete...→ Delete files → Yes→ Delete cookies → OK→ Delete history → OK→ Close (browsing history window)→ OKMozilla Firefox→ Tools → Clear Private Data[x] Browsing History[x] Download History[x] Saved Form and Search History[x] Cache[x] Cookies→ Clear Private Data NowApple Safari 3:→ Edit → Preferences→ Security (tab) → Show Cookies→ Remove All → Doneafter that:→ Safari → Empty Cache → Emptyafter that:→ History → Clear History
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Question : How can I use Javascript to write to a text file locally?
Hi,can i use javascript on my computer to write to a text file locally?Thanks!
Answer:
yes it can be done using JavaScripthere goes the codehttp://www.geocities.com/asadwithcaliber/Document1.txtdon't know why but seemed to work only on IE :(
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Question : How ethical to use Javascript libraries that are available on the net?
I want to do something with JavaScript on my website but don't know how to implement it, but i've found it has already been written by someone and is available to download free as they've put it on net.So is it right morally to use something that someone has already been written? does this count as cheating? does it infringe any copyright?
Answer:
I have used jquery libraries after making sure that the libraries are covered under the GPL license. Most, if not all jquery libraries are under such libraries. Please read the license before you use it on your site. In most cases, you have to include the lib in your distribution. I go a head and do that anyway.Take a look at http://whatiscopyright.org/ it will help a lot.
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Question : How can i get JavaScript on my blackberry pearl? Would it be safe to download if necessary?
I just got a blackberry pearl. I wanted to get access to my bank account information on line but when i try log in in, it says: Your browser is not capable of viewing this site because it does not support JavaScript or JavaScript may be disabled. Please enable JavaScript. Were i can i get JavaScript? Or is it already on my phone, i just have to enable it? If i have to download it, will it be safe to do so?
Answer:
It depends on the bank site whether the BlackBerry Java Script will actually work.Try these solutions. Open your browser, click the menu button, scroll to Options. Go into Browser Configuration and check "Support JavaScript". Try the website. If it still doesn't work, go back into the same setting, keep Support JavaScript checked and go to "Browser Identification", select Internet Explorer. This can also be known as "Browser Emulation Mode". Now try the website. If it still doesn't work, then you're sunk. But these are the best attempts and they do sometimes work. Under normal circumstances I can't login to by bank, but with these settings mine works.Good luck.
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Question : How can JavaScript be used to display things differently in two different browsers?
Hey everyone, I started programming and was wondering how JavaScript can be used to display things differently in two different browsers? Thanks for all help!Sorry, I mean like explain to me? I understand the code but what are the different ways in which Javascript can be used to display things differently in two different browsers? Thanks!
Answer:
Use this to have all details of the browser in use:(Put "document.write ( " sign for BR " );" between each for clarity.)Use any of these variables to decide what to do...UA (User agent) is the name of the browser (a long string)Get the screen width (resolution)function GetW ( ){var myWidth = 0;if( typeof( window.innerWidth ) == 'number' ) //Non-IEmyWidth = window.innerWidth;else if ( document . documentElement && ( document . documentElement . clientWidth || document . documentElement . clientHeight ) ) {//IE 6+ in 'standards compliant mode'myWidth = document . documentElement . clientWidth;}else if ( document.body &&( document . body . clientWidth || document . body . clientHeight ) ) {//IE 4 compatiblemyWidth = document.body.clientWidth;}return (myWidth);}(spaces and CR added for clarity and YA line cutter!)
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Question : JavaScript?
Does anyone know programs or software that creates the JavaScript tags for you? Im in a class and we have to build sites using JavaScript manually in notepad.
Answer:
I agree with Joanna... you are better off in a simple editor... but you need a good implementation of javascript! Not that stuff that comes with Internet Explorer!I suggest you use Firefox (http://getfirefox.com) for your debugging and syntax checking. Much more helpful errors!and when you get serious you can get a plug-in call firebug... it can trace and debug even easier!
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Question : How can I make javascript work on my computer?
I've done the "enable javascript" thing, and I've downloaded the update several times and it always says it is successful, but still I can't go on any websites. I also tried downloading it to my desktop. it still always says, "you need to update or enable javascript". how else can I fix it?
Answer:
Its possible that you have a anti spyware or virus blocker of some kind that is not letting you use java. try disabling the anti spyware and any other blockers you may have. it mite put your computar at risk but at least you will kow what it was.
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Question : How to learn Javascript fast and effective to make use in business website?
My intention is to learn Javascript to apply to commercial websites such as building the "pop up" or pull down menu upon mouse interaction, changing the color of text upon mouse in, out etc.What's your suggestion(s) ?Thanks!
Answer:
just search the book in the http://www.itstudy8.org/byhttp://www.gunungpring.com/wordpress/internet-make-money/
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Question : How to use Javascript animation to change the size of a div?
Im trying to use purely Javascript to animate the sizing of a div. Basically I want the div to slide up and down when called to do so. Any help? Thanks.
Answer:
What you're talking about is a combination of JavaScript and CSS. You must use CSS relative positioning on the div you want to move, then adjust its "top" setting with JavaScript. To create an actual slide effect (and not just have the div jump around), you need to implement timers. I pasted the basic idea as a test webpage. Simply copy and paste into a blank html document. If you want to use this code to change the height of the div (your question wasn't very clear), you should replace the style.top code with style.height.Movement JS |
Question : How do you fix JavaScript errors using debugger/developer tools, in interent explorer?
As of two days ago I can no longer attach things or send emails using my university email account with internet explorer because of JavaScript errors. I think it is a runtime error?! Anyway, I kow how to open the debugger from selecting it from the tools menu in IE and it does detect problems with this website, but I have no idea what I need to do with the debugger to fix them. Can you please help. Thanks.It is meant for anyone to use. Look at developer tools in the dropdown menu of tools. It isn't an ie problem, its my pc which I can fix.
Answer:
I don't know what debugger you are talking about, but I'm pretty shure the tool is meant for developers, not users.Aks the administrator to fix it, and until then, you can't do much but use another browser.
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