CollectionConvenience is a Swift Package Manager package for iOS/tvOS (10.0 and above), watchOS (4.0 and above), and macOS (10.14 and above), under Swift 5.0 and above, adding a protocol extension to Collection to define the computed property isNotEmpty. It may seem redundant but it sometimes does make for cleaner code.
public extension Collection {
var isNotEmpty: Bool
}CollectionConvenience is provided only as a Swift Package Manager package, because I'm moving away from CocoaPods and Carthage, and can be easily installed directly from Xcode.
CollectionConvenience is available under the MIT license. See the LICENSE file for more info.