ip-regex
Advanced tools
Package description
The ip-regex npm package is a module that provides regular expressions for matching IP addresses. It supports both IPv4 and IPv6 addresses and offers options to match exact strings, exclude CIDR notation, and more.
Matching IPv4 addresses
This feature allows you to match IPv4 addresses in a given string using the ipRegex.v4() method.
const ipRegex = require('ip-regex');
// Match all IPv4 addresses in a string
const text = 'Examples: 192.168.0.1 and 8.8.8.8';
const ips = text.match(ipRegex.v4());
console.log(ips);Matching IPv6 addresses
This feature allows you to match IPv6 addresses in a given string using the ipRegex.v6() method.
const ipRegex = require('ip-regex');
// Match all IPv6 addresses in a string
const text = 'Examples: 1:2:3:4:5:6:7:8 and ::1';
const ips = text.match(ipRegex.v6());
console.log(ips);Matching exact IP addresses
This feature allows you to match an exact IP address string using the ipRegex.v4() or ipRegex.v6() method with the 'exact' option set to true.
const ipRegex = require('ip-regex');
// Match an exact IPv4 address
const exactMatch = ipRegex.v4({exact: true}).test('192.168.0.1');
console.log(exactMatch);The 'ip' npm package is used for IP address manipulation, such as formatting and parsing IP addresses, but does not focus on regex matching like ip-regex.
The 'is-ip' npm package is used to check if a given string is an IP address, which is a similar functionality to ip-regex, but it does not provide regex patterns for matching within larger strings.
The 'cidr-regex' npm package provides regular expressions for matching CIDR IP addresses. It is similar to ip-regex in that it provides regex patterns, but it is specifically for CIDR notation.
Readme
Regular expression for matching IP addresses
$ npm install --save ip-regex
const ipRegex = require('ip-regex');
// Contains an IP address?
ipRegex().test('unicorn 192.168.0.1');
//=> true
// Is an IP address?
ipRegex({exact: true}).test('unicorn 192.168.0.1');
//=> false
ipRegex.v6({exact: true}).test('1:2:3:4:5:6:7:8');
//=> true
'unicorn 192.168.0.1 cake 1:2:3:4:5:6:7:8 rainbow'.match(ipRegex());
//=> ['192.168.0.1', '1:2:3:4:5:6:7:8']
Returns a regex for matching both IPv4 and IPv6.
Returns a regex for matching IPv4.
Returns a regex for matching IPv6.
Type: boolean
Default: false (Matches any IP address in a string)
Only match an exact string. Useful with RegExp#test() to check if a string is an IP address.
MIT © Sindre Sorhus
FAQs
Regular expression for matching IP addresses (IPv4 & IPv6)
The npm package ip-regex receives a total of 6,736,989 weekly downloads. As such, ip-regex popularity was classified as popular.
We found that ip-regex demonstrated a not healthy version release cadence and project activity because the last version was released a year ago. It has 1 open source maintainer collaborating on the project.
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