Library of useful functions related to IP

Infer the request's IP based on custom headers on Fastify


Validates if a value is an integer array.

Fast and powerful array sorting. Sort an array of objects by one or more properties. Any number of nested properties or custom comparison functions may be used.

Check if two arrays are equal

Find a suitable IP host to view local websites on.

Anonymize IP addresses, works with IPv4 and IPv6

Code that will validate an IP address for correct format and give additional information about the type of IP address.

A utility function to index arrays by any criteria

Ip to location database

`[].map(f)` for older browsers

Like an array, but rounder.

Find geolocation data from IP addresses (e.g. city, country, timezone) using the IPLocate.io API

Validates given IPs (IPv4 and IPv6) using [micromatch][] - glob patterns, RegExp, string or array of globs. If match returns the IP, otherwise null.

Return a function which tests if every element in an array passes a test condition.

Array#filter for older browsers.

Normalize array (possibly n-dimensional) to zero mean and unit variance

A light-weight IP address based filtering system

A ponyfill for the ES 2015 (ES6) `Array.from()`.