Instance Method

max()

Returns the maximum element in the sequence.

Declaration

@warn_unqualified_access func max() -> Character?

Return Value

The sequence’s maximum element. If the sequence has no elements, returns nil.

Discussion

This example finds the largest value in an array of height measurements.

let heights = [67.5, 65.7, 64.3, 61.1, 58.5, 60.3, 64.9]
let greatestHeight = heights.max()
print(greatestHeight)
// Prints "Optional(67.5)"

Complexity: O(n), where n is the length of the sequence.

See Also

Finding Characters

func contains(Character) -> Bool

Returns a Boolean value indicating whether the sequence contains the given element.

func allSatisfy((Character) -> Bool) -> Bool

Returns a Boolean value indicating whether every element of a sequence satisfies a given predicate.

func contains(where: (Character) -> Bool) -> Bool

Returns a Boolean value indicating whether the sequence contains an element that satisfies the given predicate.

func first(where: (Character) -> Bool) -> Character?

Returns the first element of the sequence that satisfies the given predicate.

func firstIndex(of: Character) -> String.Index?

Returns the first index where the specified value appears in the collection.

func firstIndex(where: (Character) -> Bool) -> String.Index?

Returns the first index in which an element of the collection satisfies the given predicate.

func last(where: (Character) -> Bool) -> Character?

Returns the last element of the sequence that satisfies the given predicate.

func lastIndex(of: Character) -> String.Index?

Returns the last index where the specified value appears in the collection.

func lastIndex(where: (Character) -> Bool) -> String.Index?

Returns the index of the last element in the collection that matches the given predicate.

func max<T>(T, T) -> T
func max(by: (Character, Character) -> Bool) -> Character?

Returns the maximum element in the sequence, using the given predicate as the comparison between elements.

func min() -> Character?

Returns the minimum element in the sequence.

func min<T>(T, T) -> T
func min(by: (Character, Character) -> Bool) -> Character?

Returns the minimum element in the sequence, using the given predicate as the comparison between elements.