and XHTML provide the language and expression, the DOM serves as a translator.

Node type

Different types of nodes in a tree are represented by specific interfaces. In other words, the node type is defined by how it communicates with other nodes. Each node has a node type property, which specifies the type of node, such as sibling or leaf.For example, if the node type property is the constant properties for a node, this property specifies the type of the node. So if a node type

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