Collection
protocol Collection : Sequence
-
Mechanica
Returns the first index where the specified value appears in the collection. After using firstIndex(of:) to find the last position of a particular element in a collection, you can use it to access the element by subscripting.
Note
Same asindex(of:)
.See also
index(of:)
Declaration
Swift
public func firstIndex(of element: Element) -> Self.Index?
Parameters
element
Index of the first element found (if any).
-
Mechanica
Returns the last index where the specified value appears in the collection. After using lastIndex(of:) to find the last position of a particular element in a collection, you can use it to access the element by subscripting.
Declaration
Swift
public func lastIndex(of element: Element) -> Self.Index?
Parameters
element
Index of the last element found (if any).
-
Mechanica
Returns a random element from
self
.Declaration
Swift
public func random() -> Element
-
Mechanica
Fetches all faulted object in one batch executing a single fetch request for all objects that we’re interested in.
Note
Materializing all objects in one batch is faster than triggering the fault for each object on its own.Declaration
Swift
public func fetchFaultedObjects()