subscript(explicit:)
Gets the explicit value of the given horizontal alignment guide.
Declaration
subscript(explicit guide: HorizontalAlignment) -> CGFloat? { get }Overview
Find the horizontal offset of a particular guide in the corresponding view by using that guide as an index to read from the context:
.alignmentGuide(.leading) { context in
context[.leading] - 10
}This subscript returns nil if no value exists for the guide.
For information about using subscripts in Swift to access member elements of a collection, list, or, sequence, see Subscripts in The Swift Programming Language.