koher

let a: Range<Int> = 1..<10 print(a.map { $0 * 2 })

Version:

swift-4.1.1-RELEASE

Output:

Error:

/usercode/main.swift:2:7: error: value of type 'Range<Int>' has no member 'map' print(a.map { $0 * 2 }) ^ ~~~