XPathResult

public enum XPathResult

This enum represents a result of a search by an XPath.

  • none: The result value is undefined
  • nodeSet: The result value is a node set
  • bool: The result value is a boolean
  • number: The result value is a number
  • string: The result value is a string

  • The result value is undefined

    Declaration

    Swift

    case none

  • The result value is a boolean

    Declaration

    Swift

    case bool(Bool)

  • The result value is a number

    Declaration

    Swift

    case number(Double)

  • The result value is a string

    Declaration

    Swift

    case string(String)

  • The position of the first element in a nonempty collection.

    If the collection is empty, startIndex is equal to endIndex.

    Declaration

    Swift

    public var startIndex: Int

  • Accesses the element at the specified position.

    The following example accesses an element of an array through its subscript to print its value:

    var streets = ["Adams", "Bryant", "Channing", "Douglas", "Evarts"]
print(streets[1])
// Prints "Bryant"

    You can subscript a collection with any valid index other than the collection’s end index. The end index refers to the position one past the last element of a collection, so it doesn’t correspond with an element.

    Parameter

    Parameter position: The position of the element to access. position must be a valid index of the collection that is not equal to the endIndex property.

    Declaration

    Swift

    public subscript(index: Int) -> XMLElement

    Parameters

    position

    The position of the element to access. position must be a valid index of the collection that is not equal to the endIndex property.

  • The collection’s past the end position—that is, the position one greater than the last valid subscript argument.

    When you need a range that includes the last element of a collection, use the half-open range operator (..<) with endIndex. The ..< operator creates a range that doesn’t include the upper bound, so it’s always safe to use with endIndex. For example:

    let numbers = [10, 20, 30, 40, 50]
if let index = numbers.index(of: 30) {
    print(numbers[index ..< numbers.endIndex])
}
// Prints "[30, 40, 50]"

    If the collection is empty, endIndex is equal to startIndex.

    Declaration

    Swift

    public var endIndex: Int

  • Returns the position immediately after the given index.

    Parameter

    Parameter i: A valid index of the collection. i must be less than endIndex.

    Returns

    The index value immediately after i.

    Declaration

    Swift

    public func index(after i: Int) -> Int

    Parameters

    i

    A valid index of the collection. i must be less than endIndex.

    Return Value

    The index value immediately after i.

  • Returns a Boolean value indicating whether two values are equal.

    Equality is the inverse of inequality. For any values a and b, a == b implies that a != b is false.

    • Parameters:
      • lhs: A value to compare.
      • rhs: Another value to compare.

    Declaration

    Swift

    public static func ==(lhs: XPathResult, rhs: XPathResult) -> Bool

    Parameters

    lhs

    A value to compare.
    rhs

    Another value to compare.