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Building Android Apps with HTML, CSS, and JavaScript
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If you know HTML, CSS, and JavaScript, you already have the tools you need to develop Android applications. This hands-on book shows you how to use these open source web standards to design and build apps that can be adapted for any Android device -- without having to use Java. You'll learn how to create an Android-friendly web app on the platform of your choice, and then convert it to a native Android app with the free PhoneGap framework. Discover why device-agnostic mobile apps are the wave of the future, and start building apps that offer greater flexibility and a broader reach. - Learn the basics for making a web page look great on the Android web browser
- Convert a website into a web application, complete with progress indicators and more
- Add animation with jQTouch to make your web app look and feel like a native Android app
- Take advantage of client-side data storage with apps that run even when the Android device is offline
- Use PhoneGap to hook into advanced Android features -- including the accelerometer, geolocation, and alerts
- Test and debug your app on the Web under load with real users, and then submit the finished product to the Android Market
This book received valuable community input through O'Reilly's Open Feedback Publishing System (OFPS). Learn more at http://labs.oreilly.com/ofps.html. Customer Review :
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JavaScript Essentials (Smashing eBook Series)
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It is not always easy for Web developers and designers to make the right decisions when having to choose the right solution. Either while building a complex Web application or even by improving a website, there are countless pre-built solutions available and picking one of them can surely be a burden sometimes. In this Smashing eBook #13 JavaScript Essentials we enlighten the most important issues you should pay attention to by all means when selecting a solution, i.e. how stable, easy to customize, usable and accessible it is, whether it can be maintained in the future, what exactly is supported and how you can extend the functionalities on your own.
One of the many important issues considered in this Smashing eBook #13 JavaScript Essentials is the importance of reviewing your code and what to avoid when you are implementing in JavaScript. Maintaining strong coding standards and withdrawing your programming away from common errors should be the basic requests for the general quality of your solutions, and the articles we have selected will explain exactly how you can achieve this. One of the sections also advises to have your code reviewed by experts and check whether they may provide other solutions to the problems you're experiencing.
Last but not least, you'll get to know the golden rules of JavaScript basic animations better, as well as JSON as a data format along with the native JavaScript functions (Math, Array, String), shortcut notations, and much more. Of course, we couldn't leave out JS events that will make your webApps work, implementation of anonymous functions, module patterns, configurations, interaction with the back end and usage of libraries to specify codes. And for those of you who are rather interested in AJAX, you'll get the information you need in case you've been wanting to turn your content dynamic and searchable.
TABLE OF CONTENTS
- Seven JavaScript Things I Wish I Knew Much Earlier In My Career
- Lessons From A Review Of JavaScript Code
- Find The Right JavaScript Solution With A 7-Step Test
- Ten Oddities And Secrets About JavaScript
- What You Need To Know About JavaScript Scope
- The Seven Deadly Sins Of JavaScript Implementation
- A Quick Look Into The Math Of Animations With JavaScript
- Searchable Dynamic Content With AJAX Crawling
Pages: 142
Language: English
Released: December 2011
Publisher: Smashing Media GmbH
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Beginning JavaScript
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The perennial bestseller returns with new details for using the latest tools and techniques available with JavaScript JavaScript is the definitive language for making the Web a dynamic, rich, interactive medium. This guide to JavaScript builds on the success of previous editions and introduces you to many new advances in JavaScript development. The reorganization of the chapters helps streamline your learning process while new examples provide you with updated JavaScript programming techniques. You'll get all-new coverage of Ajax for remote scripting, JavaScript frameworks, JavaScript and XML, and the latest features in modern Web browsers. Plus, all the featured code has been updated to ensure compliance with the most recent popular Web browsers. - Introduces you to the latest capabilities of JavaScript, the definitive language for developing dynamic, rich, interactive Web sites
- Features new coverage of data types and variables, JavaScript and XML, Ajax for remote scripting, and popular JavaScript frameworks
- Offers updated code that ensures compliance with the most popular Web browsers
- Includes improved examples on the most up-to-date JavaScript programming techniques
Continuing in the superlative tradition of the first three editions, Beginning JavaScript, Fourth Edition, gets you up to speed on all the new advances in JavaScript development. Note: CD-ROM/DVD and other supplementary materials are not included as part of eBook file.
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The JavaScript Programming Language
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The JavaScript Programming Language provides a brief introduction to the JavaScript language that is now an important component of every programmer's tool box. It offers an overview of JavaScript to students interested in pursuing advanced programming skills. Clear and concise, The JavaScript Programming Language is an excellent primer to this popular dynamic language and is ideal for use on its own or when coupled with one of Jones and Bartlett's outstanding introductory computer science texts.
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Understanding AJAX: Using JavaScript to Create Rich Internet Applications
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AJAX is hot, hot, hot! Why? It's simple. With AJAX, internet developers and designers can create web-based applications that look and feel like desktop applications. These are responsive, highly-interactive applications that represent a new breed called "Rich Internet Applications" (RIA). This book is a guide to designing, implementing, and debugging AJAX applications. The book begins by comparing and contrasting the traditional web application lifecycle with that of an AJAX application. It then covers core AJAX technology, including the XMLHTTPRequest object, and describes various methods for "consuming" data returned by it. Because AJAX represents a fundamentally new way of creating web applications, the book is careful to explore usability guidelines for AJAX developers. This is followed by a series of use cases that show how specific problems are solved in both the pre-AJAX and post-AJAX worlds. The book ends with a chapter on debugging AJAX applications, along with appendices that cover toolkits that greatly simplify AJAX development. All of the server-side examples presented in the book will be written in PHP, the most popular langauage for server-side web programming.
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Questions & Answers
Question : How do I fix a javascript error on page?
I cannot open any emails due to a javascript error. If it helps, We recently switched internet providers from rogers to bell. Does anyone know how to fix this?
Answer:
Now please provide more information on the browsers you use.You can disable javascript error pop ups both in IE and mozilla. But if the javascript is totally crap that the page cannot run, you have to wait till the web site administrator corrects it.
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Question : How can I call a Javascript event on a HTML div border corners?
It sounds confusing, but is quite simple. I have a square div, and using css I have four circles replacing the corners of the of the divs border. I want the user to be able to click on one of the corner circles changing the curser image and calling the Javascript onclick event. How do I did that?
Answer:
The corners of the div are not in themselves elements that you can give attributes to (other than the border color and width). But do simulate this you can easily making a div superimposed on a larger div, thus making it seem as if the back div is it's border.
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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 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 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 : Javascript?
I'm not allowed to use spellcheck, cannot edit my questions, cannot press "show" on hidden (-5) answers. It says "must have Javascript enabled."I've gone to Tools, Internet Options, followed that whole thing.I've gone to Java.com and downloaded the latest version.Any other ideas? This sucks
Answer:
Welll, either it's a temporary thing due to the tinkering that Yahoo is doing today in Answers (although I'm not having that problem today) or perhaps you could retrace your steps: Tools, Internet Options, Security tab, Custom Level, look for "Scripting" heading (there are lots of scripting items, you want the one that just says Scripting), the sub-heading is Active Scripting, click enable, click OK at the bottom, click Yes to the warning message, click OK again.
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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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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 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 do i work adobe/javascript for youtube?
When i go on youtube it says that i cant watch a video because i don't have javascript turned on or because i have an old version of adobe flash player.I tried to download the new adobe but it still wouldn't work.Can someone help?
Answer:
Here is how to enable javascript.http://www.nasa.gov/home/How_to_enable_Javascript.htmlFor Internet Explorer 8http://en.kioskea.net/forum/affich-118786-enable-javascript-in-internet-explorer-8#5Google Chrome has Javascript automatically on, but it may have been turned off.http://www.mistered.us/tips/javascript/chrome.shtmlAfter you do that, you should be able to watch the videos on YouTube,Good luck.
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