By Sas Jacobs
XML has been round for a few years, so what makes this booklet diversified? good, most of the rivals available in the market are huge tomes; this publication assumes a unique technique, displaying so that you can provide the reader all they should comprehend to hit the floor working, with no making them trawl via thousands of pages of syntax. The publication additionally offers the main updated photograph of the topic—XML help within the newest internet browsers, developing XML-driven purposes utilizing the main models of internet criteria and server-side languages, together with CSS 2.1/3, DOM, XSLT and XPath 2, personal home page five, ASP.NET 2, and plenty of extra. eventually, the booklet offers an advent to Ajax-style programming, that is a vital subject for contemporary internet builders to appreciate. XML is middle to Ajax, so an knowing of it's crucial while studying how you can application Ajax performance. This publication as a result offers an exceptional stepping stone for readers wishing to take this course.
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Additional info for Beginning XML with DOM and Ajax: From Novice to Professional (Beginning: From Novice to Professional)
It uses an XPath expression to determine the node. You’ll find out more about XPath a little later in the chapter. In this case, you’re matching the root node, which is indicated by a slash (/). ■Note Technically, the root node isn’t the same as the root element. The root note is at a higher level in the document and has the root element as a child. This allows the stylesheet to access information in the prolog and epilog, as well as information in elements. The template specifies what should happen when the XSLT processor encounters the root.
Once a node has been processed, it is discarded and cannot be processed again. The whole document isn’t loaded into memory at once, so you can avoid problems associated with processing large XML documents. This method of processing puts the onus on you to store any information from the XML document that might be required later. SAX is ideal, for example, as an intermediate routing product in a communications system. An incoming XML document is likely to consist of a small routing header and a larger document for delivery to the end point.
In other words, the element declarations nest to indicate the relative position of elements. It’s possible to organize schema documents differently. The first element defined is the document element
Beginning XML with DOM and Ajax: From Novice to Professional (Beginning: From Novice to Professional) by Sas Jacobs