str.trim()

.trim()

// for str.trimmingCharacters()
import Foundation    

// string.trim()
extension String {
    func trim() -> String {
        trimmingCharacters(in: .whitespacesAndNewlines)
    }
}

📘 手冊

• Foundation ⟩ NSString ⟩ .trimmingCharacters(in:)

🗣 討論

• Does swift have a trim method on String?