Find the intersection between 2 NSRanges

Question

Sigiloso · Accepted Answer

Did you manage to finish the question. How many questions did he gave you ?

Sigiloso · Answer

func findIntersection(range1: NSRange, range2: NSRange) -> NSRange {
    let intersection = NSIntersectionRange(range1, range2)
    return intersection
}

Sigiloso · Answer

extension NSRange {
    func my_intersection(with range: NSRange) -> NSRange? {
        guard range.lowerBound <= self.upperBound ||
            self.lowerBound <= range.upperBound else {
            return nil
        }
        
        let start = max(self.lowerBound, range.lowerBound)
        let end = min(self.upperBound, range.upperBound)
        
        return NSRange(location: start, length: end - start)
    }
}

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