Returns a Boolean value indicating whether every element of a sequence satisfies a given predicate.
- iOS 7.0+
- macOS 10.9+
- UIKit for Mac 13.0+Beta
- tvOS 9.0+
- watchOS 2.0+
- Xcode 10.0+
A closure that takes an element of the sequence as its argument and returns a Boolean value that indicates whether the passed element satisfies a condition.
true if the sequence contains only elements that satisfy
The following code uses this method to test whether all the names in an array have at least five characters:
Complexity: O(n), where n is the length of the sequence.