Flex provides a set of API classes and functionality based on the ECMAScript for XML (E4X) standards in order to work with XML data. The E4X approach provides a simple and straightforward way to work with XML structured data, and it also reduces the complexity of parsing XML documents.
Earlier versions of Flex did not have a direct way of working with XML data. The E4X provides an alternative to DOM (Document Object Model) interface that uses a simpler syntax for reading and querying XML documents. More information about other E4X implementations can be found at http://en.wikipedia.org/wiki/E4X.
The key features of E4X include:
It is based on standard scripting language specifications known as ECMAScript for XML. Flex implements these specifications in the form of API classes and functionality for simplifying the XML data processing.
It provides easy and well-known operators, such as the dot (.) and
@, to work with XML objects.The
@and dot (.) operators can be used not...