isValid() function

Whether a string is a valid IPv4 or IPv6 address.

Signature:

export declare function isValid(ip: string): boolean;

Parameters

Returns:

boolean

true for a valid address of either family.

Remarks

Node's own net.isIP, so it accepts a bare address only — '', 'unknown' and '10.0.0.0/8' are all false, because a prefix length makes it a CIDR record rather than an address. Use this to screen untrusted input before Networks, whose constructor throws on anything it cannot parse.

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