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pardel/gist:81eee1d308471fde2a5ccc4243372aad

Created February 21, 2017 15:19
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swift IPv4 validation
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gistfile1.swift
func isValidIPv4(_ ip: String) -> Bool {
return ip
.characters.split(separator: ".").map { String($0) }
.flatMap { Int($0) }
.filter { (0...255).contains($0) }
.count == 4
}
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