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takasek 9/29/2018 2:21 PM
なるほど、 .less !
2:21 PM
@swift-4.2.4 import Foundation let c = NSNumber(value: Double(42)) let d = NSNumber(value: Double.nan) switch c.compare(d) { case .orderedAscending: print("asc") case .orderedSame: print("same") case .orderedDescending: print("desc") }