Accelerated DOM Scripting with Ajax, APIs and Libraries
JavaScript libraries have been around in one form or another for almost as long as JavaScript itself. As you go from project to project, it’s inevitable that you’ll find yourself reusing various functions. They become part of your core that you end up copying each time you start up something new. With any good library, code reuse leads to reliability; using the same code on multiple projects means that the code has been exposed to more and more people, enabling bugs or cross-browser issues to be resolved.
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DOM Builder
The functions simply return a DOM node that you can append to whatever part of the document you like. Each function takes an number of arguments. The first argument can contain an object literal of attribute/value pairs if you need to specify attributes but if you don't need attributes you can just leave it out. Otherwise it creates text nodes of any text you give it and appends any DOM nodes you give it. That's it.
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From DHTML to DOM scripting
In this article we will try to help JavaScript beginners to spot old and outdated JavaScript techniques and explain what their issues are. We do this by looking at a web page that might have been developed around the millennium with development ideas that were good at the time (DHTML), but result in inaccessible or even broken pages in today's web environment.
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domCollapse
domCollapse allows you to collapse and expand parts of page by activating other parts of a page. To define a element that expands or collapses others add the class trigger to it as an attribute. This will automatically collapse the next following element in the document tree and add the functionality to alternately collapse and expand it.
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Faster DOM Queries
Alex Russell, head honcho of the Dojo Foundation, suggests a hideous hack to speed up DOM queries. Why does he want to do this? He wants behavioral extensions to be applied as quickly as possible and he has a point. For a good user experience the code to support a web interface should be applied as quickly as possible.
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Max Kiesler is an award-winning strategic designer and co-founder and principal of Ideacodes.com, a web consultancy in San Francisco focused on next generation websites. About Max...
