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cidr-regex

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cidr-regex

Regular expression for matching IP addresses in CIDR notation

  • 4.1.1
  • latest
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  • npm
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decreased by-1.46%
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What is cidr-regex?

The 'cidr-regex' npm package provides regular expressions for matching and validating CIDR (Classless Inter-Domain Routing) notation IP addresses, both IPv4 and IPv6. This is useful for network configuration, validation, and parsing tasks.

What are cidr-regex's main functionalities?

Match CIDR Notation

This feature allows you to check if a given string matches the CIDR notation for IPv4 or IPv6 addresses.

const cidrRegex = require('cidr-regex');

const ip = '192.168.0.1/24';
const isMatch = cidrRegex().test(ip);
console.log(isMatch); // true

Extract CIDR Notation

This feature allows you to extract all CIDR notations from a given string.

const cidrRegex = require('cidr-regex');

const text = 'Here is a CIDR: 192.168.0.1/24 and another one: 10.0.0.0/8';
const matches = text.match(cidrRegex());
console.log(matches); // ['192.168.0.1/24', '10.0.0.0/8']

IPv4 and IPv6 Support

This feature provides separate methods for matching IPv4 and IPv6 CIDR notations.

const cidrRegex = require('cidr-regex');

const ipv4 = '192.168.0.1/24';
const ipv6 = '2001:db8::/32';
console.log(cidrRegex.v4().test(ipv4)); // true
console.log(cidrRegex.v6().test(ipv6)); // true

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Package last updated on 23 May 2024

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