Michael
16 lines
445 B
Swift
Executable File
16 lines
445 B
Swift
Executable File
import Foundation
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extension String {
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subscript (i: Int) -> Character {
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let index = self.index(self.startIndex, offsetBy: i)
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return self.characters[index]
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}
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func substring(from: Int, to: Int) -> String {
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let fromIndex = self.index(self.startIndex, offsetBy: from)
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let toIndex = self.index(self.startIndex, offsetBy: to + 1)
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return self.substring(with: fromIndex ..< toIndex)
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}
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}
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