18 lines
442 B
Swift
18 lines
442 B
Swift
import Foundation
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extension String {
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subscript (i: Int) -> Character {
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return self[self.startIndex.advancedBy(i)]
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}
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subscript (i: Int) -> String {
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return String(self[i] as Character)
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}
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subscript (r: Range<Int>) -> String {
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let start = startIndex.advancedBy(r.startIndex)
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let end = start.advancedBy(r.endIndex - r.startIndex)
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return self[Range(start ..< end)]
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}
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} |