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    net.isIPv6

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    net.isIPv6(input): boolean
    Attributes
    input:string
    Returns:boolean

    Returns true if input is an IPv6 address, including an IPv4-mapped IPv6 address. Otherwise, returns false.

    net.isIPv6('::1'); // returns true
net.isIPv6('::ffff:127.0.0.1'); // returns true
net.isIPv6('fhqwhgads'); // returns false
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