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Learning Lab






News

Seeking Ubiquity
by Kurt Cagle
Ubiquity, the open source add-on currently in alpha and being produced by the Mozilla team for Firefox, is intended to make such a command line possible. The idea behind ubiquity is to take advantage of both the internal storage capability and online communications in order to let users both create local "scripts" written in JavaScript that can be invoked to perform certain actions and to create a centralized (and vetted) library of such scripts online that people can load to accomplish nearly any task.

Dancing with Many Languages
by Eric Larson
A friend of mine pointed out Disco, a map-reduce framework written in Erlang and using Python for writing the actual map and reduction functions. I haven't tried it just yet, but the concept is interesting in that it uses both Erlang and Python.

Reflecting Upon Chrome
by Kurt Cagle
Chrome represents a change in the way that Google is choosing to play the game, putting them on a far more equal footing with the other browser vendors, and asserting that, on the browser as on the server, they have arrived.

David Flanagan on JavaScript 2
by chromatic
Is JavaScript and HTML the new BASIC? What does the average programmer need from JavaScript 2? Is the web the new client-server model of computing? JavaScript guru David Flanagan addresses these questions and more in this interview.

Harmony comes to JavaScript, but Not Everyone's Singing
by Kurt Cagle
A long and contentious struggle came to an end this week as ECMA Technical Committee 39, responsible for the development and maintenance of ECMAScript (known universally everywhere else as JavaScript), voted to establish ECMAScript 3.1 as the next "trunk" branch for the venerable web browser language, rather than the more ambitious (and contentious ECMAScript 4.0). While the breaking of the deadlock is a momentous achievement, not everyone is happy with it.

Where are the New Client-Side Development Environments?
by chromatic
The old client-server application versus client-only application debate is back on the Web, thanks to Ajax and RIA technologies. It's missing a long-forgotten third contender, however -- one which had significant drawbacks and very significant advantages.

Clear, Concise, and Entertaining Answers to JavaScript Questions
by Laura Adair
JavaScript: The Missing Manual from bestselling author David McFarland teaches you how to use JavaScript in sophisticated ways — even if you have little or no programming experience. Once you the master the language's structure and terminology, you'll learn how to use advanced JavaScript tools

10 Helpings of Dojo Goodness
by Matthew Russell
In an effort to promote my recent book, Dojo: The Definitive Guide, I've been writing an ongoing column for the ONLAMP blog entitled "Dojo Goodness". The idea behind the column is to provide bite-sized chunks of useful information that are...

Bestselling Author David McFarland Gives Clear, Concise, and Entertaining Answers to JavaScript Questions
by Mary Rotman
With the recent release of JavaScript: The Missing Manual, I asked bestselling author David McFarland a few questions about his new book.

Tuesday's OSCON Event Schedule
by chromatic
OSCON is happening right now at the Oregon Convention Center in Portland, Oregon, bringing together thousands of experts, visionaries, and hackers in the trenches to explore all that open source has to offer. Today's afternoon sessions include: Creating Location-aware Web 2.0 Applications on an Open Source Geospatial Platform TCP/IP Troubleshooting for System Administrators People for Geeks Practical Erlang Programming Porting to Python 3.0 Hack This App! PHP Security Workshop ...and more! For more information about OSCON and to view the complete event schedule visit our OSCON 2008 site.

High Performance Scalable Web Sites and Optimization
by Simon St. Laurent
O'Reilly published Building Scalable Web Sites, High Performance Web Sites, and now Website Optimization. How similar and different are these three books?

Powering Up Ajax Development Techniques
by Laura Adair
Dojo: The Definitive Guide — This comprehensive guide to Dojo includes a hard-hitting reference to help you build rich and responsive web applications with complex layouts and form controls closely resembling those found in the most advanced desktop applications. If you're a DHTML-toting web developer, you need to read this book.

Powering Up Ajax Apps with Dojo
by Matthew Russell
The book I've been working on for the past year, Dojo: The Definitive Guide, has finally materialized and is now available on Safari. Printed copies should be available no later than this Tuesday, June 17th -- the same day Firefox...

Turbo-charging JavaScript - Trace Trees and V8
by Kurt Cagle
Persistence, performance, rich APIs and increasing broadband connectivity are all likely to make a huge difference for this latest generation of browsers, and the quantum improvement of JavaScript capabilities due to Trace Trees and precompiled JavaScript will likely play a major part in that evolution.

Audio: Lawrence Lessig on Congressional Reform and Internet for Everyone
by Timothy M. O'Brien
Lawrence Lessig discusses Change-Congress.org, a online tool for users to tag congressional candidates as supporting or opposing reforms such as public financing, earmark reform, and congressional transparency. Lessig also responds to a few questions about InternetForEveryone.org, a coalition of public interest and industry groups working for open, universal, and affordable access to broadband.



JavaScript & DHTML Cookbook: Recipe of the Day
  From the JavaScript & DHTML Cookbook: Recipe of the Day

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Do it now.


Today's News
September 30, 2008

MooTools Basic Tips for Web Designer: Part 3 - Interaction with HTML Forms This tutorial series illustrates some simple tips to begin working with MooTools. This installment illustrates how to implement simple interactions with form input elements using this powerful framework and unobtrusive JavaScript code. [Source: JavaScriptSource.com news]

Copyright Notice This unobtrusive script will update the current year for the copyright notice on a page. No need to worry about changing it from year to year. Very easy to implement. [Source: JavaScriptSource.com news]

The Prototype JavaScript Framework Programmers tend to collect utility functions to perform common tasks. In this article we look at some of the key features of the Prototype JavaScript Framework and demonstrate how it can make your life easier. By Rob Gravelle. 0925 [Source: WebReference News]

Jeene: An Automatic Partial Evaluator for JavaScript This tutorial shows that it is possible to create an online partial evaluator for JavaScript, written also in JavaScript. This is the first in a series describing the inner workings of Jeene. [Source: JavaScriptSource.com news]

News Display with Graphic Use this script to display a series of rotating news stories, including graphics and a link to the story. Easy to implement. [Source: JavaScriptSource.com news]

base2 A lightweight library that irons out all the annoying differences in JavaScript implementations. It provides the additional functionality from JavaScript 1.6+ that only Mozilla browsers implement. [Source: JavaScriptSource.com news]

Video Popup List If you have a number of videos to show off, a select list is a good option. Use this script to display videos in a popup window, using the video links from the list. This method saves a large amount of space on the page. [Source: JavaScriptSource.com news]

Seven Ways to Toggle an Element There are an unlimited number of ways to toggle an element's display using JavaScript. Although it has been around for awhile, toggling still proves itself to be useful in improving user interaction. Here are seven methods of implementing the technique. [Source: JavaScriptSource.com news]

Automatic Link File-Size Generation This script displays the size and type of a document next to the link targeting it. This distinguishes the 'attachment' link from a normal Web link, and provides the user with helpful information. Easy to implement. Includes the necessary jQuery script. [Source: JavaScriptSource.com news]

MooTools Basic Tips for Web Designer: Part 2 - Writing Unobtusive JavaScript Code This tutorial series illustrates some simple tips to begin working with MooTools. This installment illustrates how to obtain the ID of DOM elements using MooTools and unobtrusive elegant code. [Source: JavaScriptSource.com news]