kubernetes-handbook/is-my-ip-valid

Is my IP valid

A small lib to validate IP addresses.

Installation

npm install --save is-my-ip-valid

Usage

const validator = require('is-my-ip-valid')
const validate = validator()
const validate4 = validator({ version: 4 })
const validate6 = validator({ version: 6 })

console.log(validate('127.0.0.1'))
//=> true

console.log(validate4('127.0.0.1'))
//=> true

console.log(validate6('127.0.0.1'))
//=> false

console.log(validate('2001:0db8:85a3:0000:0000:8a2e:0370:7334'))
//=> true

console.log(validate4('2001:0db8:85a3:0000:0000:8a2e:0370:7334'))
//=> false

console.log(validate6('2001:0db8:85a3:0000:0000:8a2e:0370:7334'))
//=> true

Acknowledgements

The code is mostly based on this wonderful library: beaugunderson/ip-address

All regexes used are audited for catastrophic backtracking by this module: substack/safe-regex