Instance Methodswift-algorithms 1.2.1Algorithms->Swift
indexed
Returns a collection of pairs (i, x), where i represents an index of the collection, and x represents an element.
func indexed() -> IndexedCollection<Self> Returns
A collection of paired indices and elements of this collection.
The indexed() method is similar to the standard library’s enumerated() method, but provides the index with each element instead of a zero-based counter.
This example iterates over the indices and elements of a set, building an array consisting of indices of names with five or fewer letters.
let names: Set = ["Sofia", "Camilla", "Martina", "Mateo", "Nicolás"]
var shorterIndices: [Set<String>.Index] = []
for (i, name) in names.indexed() {
if name.count <= 5 {
shorterIndices.append(i)
}
}