jQuery and JavaScript Coding: Examples and Best Practices

97 Things Every Programmer Should Know From Programmer 97-things Welcome to the home page for the 97 Things Every Programmer Should Know project, pearls of wisdom for programmers collected from leading practitioners. You can read through the Contributions Appearing in the Book plus the Other Edited Contributions, browse Contributions in Progress, view the list of Contributors, and also learn How to Become a Contributor. If you would simply like to comment on a contribution, please also read How to Become a Contributor as some of it applies to you. There is no overarching narrative: The collection is intended simply to contain multiple and varied perspectives on what it is that contributors to the project feel programmers should know. The deadline for having something considered for inclusion in the the book form of the project has passed, but the site is still open for contributions. 97 contributions have been selected and the book has now been published in O'Reilly's 97 Things series. Kevlin HenneySite editor

PHP: Hypertext Preprocessor 6 Advanced JavaScript Techniques You Should Know By Louis Lazaris There have been a number of articles published over the years that discuss best practices techniques for JavaScript. I thought I would go a little bit beyond the scope of those articles and outline a number of advanced techniques and practices that I have personally used or read about that could be invaluable in certain circumstances. This article doesn’t necessarily cover every detail of the methods I’m describing, but provides an overview, along with code examples, of some practical JavaScript coding techniques. 1. Closures in JavaScript are a fairly straightforward concept, and have been discussed online in a number of in-depth articles. Simply put, closures allow variable scope to be extended past the common scope restrictions of functions. "Think of closures as a kind of regional scope: broader than local but not as broad as global." To create a closure, you nest a function inside of a function. Further Reading 2. The function above can take up to 6 arguments. 3. 4.

TAKE a BOW - Leipziger Bogenschützen e.V. Exception Handling in Java (2007) 20 Useful PHP jQuery Components & Tuts for Everyday Project - No Apr 05 2009 Web applications have made huge leaps and bounds in improving user experience thanks to a lot of recently developed Ajax technology. When you combine some neat functionality courtesy of PHP with the cleverness of jQuery you can produce some pretty neat effects. In an effort to help you take it up a notch, we’d like to share some methods for helping your site anticipate a user’s next move. The post below is made up of the best 20 PHP + jQuery Components and Tutorials that you will likely need in many of your projects, they are all of the highest quality and more or less easy to configure. Give them a try. 1. A simple way to keep track of many files is to use a directory tree. Check out the Demo Here 2. A sceencast tutorial for creating a photo site using PHP, jQuery, and AJAX. 3. In this article, learn how to create a simple but effective means of capturing and displaying visitor comments using a blend of jQuery, PHP and JSON. Check out the Demo Here 4. Check out the Demo Here 5.

How to Write an Equality Method in Java How to Write an Equality Method in Javaby Martin Odersky, Lex Spoon, and Bill VennersJune 1, 2009 Summary This article describes a technique for overriding the equals method that preserves the contract of equals even when subclassses of concrete classes add new fields. In Item 8 of Effective Java1, Josh Bloch describes the difficulty of preserving the equals contract when subclassing as a “fundamental problem of equivalence relations in object-oriented languages.” Bloch writes: There is no way to extend an instantiable class and add a value component while preserving the equals contract, unless you are willing to forgo the benefits of object-oriented abstraction. Chapter 28 of Programming in Scala shows an approach that allows subclasses to extend an instantiable class, add a value component, and nevertheless preserve the equals contract. Class java.lang.Object defines an equals method, which subclasses may override. These four pitfalls are discussed in the remainder of this section. 1. 2.