Node

public protocol Node: Searchable, CustomStringConvertible

Instances of conforming types represent a document object model node that can be searched by an XPath or CSS selector and also provide the node’s underlying data in a number of ways.

In the HTML/XML DOM (Document Object Model), everything is a node:

  • The document itself is a document node;

  • All HTML/XML elements are element nodes;

  • All HTML/XML attributes are attribute nodes;

  • Text inside HTML elements are text nodes;

  • Comments are comment nodes.

  • Text content of the node. May be nil if no content is available.

    Declaration

    Swift

    var text: String?

  • HTML content of the node. May be nil if no content is available.

    Declaration

    Swift

    var html: String?
  • xml

    XML content of the node. May be nil if no content is available.

    Declaration

    Swift

    var xml: String?

  • HTML content of the node without outermost tags. Only available if the html property is not nil.

    Declaration

    Swift

    var innerHTML: String?

  • Value of the attribute class of the node. This property is nil if the node does not have a class attribute

    Declaration

    Swift

    var className: String?

  • Name of the corresponding tag for this node.

    Note

    Setting this property to nil does not make any change.

    Declaration

    Swift

    var tagName: String?

  • Content of the node. May be nil if no content is available.

    Declaration

    Swift

    var content: String?
  • description Extension method

    A textual representation of this instance.

    Instead of accessing this property directly, convert an instance of any type to a string by using the String(describing:) initializer. For example:

    struct Point: CustomStringConvertible {
    let x: Int, y: Int

    var description: String {
        return "(\(x), \(y))"
    }
}

let p = Point(x: 21, y: 30)
let s = String(describing: p)
print(s)
// Prints "(21, 30)"

    The conversion of p to a string in the assignment to s uses the Point type’s description property.

    Declaration

    Swift

    public var description: String