is-ip

What is is-ip?

The is-ip npm package is a utility library for checking if a given string is a valid IP address. It supports both IPv4 and IPv6 addresses and provides simple, easy-to-use functions for validation.

What are is-ip's main functionalities?

Check if a string is a valid IP address

This feature allows you to check if a given string is a valid IP address, whether it's IPv4 or IPv6.

const isIp = require('is-ip');

console.log(isIp('192.168.0.1')); // true
console.log(isIp('::1')); // true
console.log(isIp('invalid-ip')); // false

Check if a string is a valid IPv4 address

This feature allows you to specifically check if a given string is a valid IPv4 address.

const isIp = require('is-ip');

console.log(isIp.v4('192.168.0.1')); // true
console.log(isIp.v4('::1')); // false

Check if a string is a valid IPv6 address

This feature allows you to specifically check if a given string is a valid IPv6 address.

const isIp = require('is-ip');

console.log(isIp.v6('::1')); // true
console.log(isIp.v6('192.168.0.1')); // false

Other packages similar to is-ip

ip

The 'ip' package provides a comprehensive set of utilities for IP address manipulation, including validation, conversion, and subnet calculations. It offers more advanced features compared to is-ip, such as converting IP addresses to different formats and performing subnet calculations.

net

The 'net' package is a built-in Node.js module that provides utilities for network-related operations, including IP address validation. While it is not as specialized as is-ip, it offers a broader range of network functionalities.

ipaddr.js

The 'ipaddr.js' package is a library for manipulating IPv4 and IPv6 addresses in JavaScript. It provides validation, parsing, and comparison functionalities. It is more feature-rich compared to is-ip, offering more detailed manipulation and analysis of IP addresses.

README

is-ip

Check if a string is an IP address

Install

$ npm install is-ip

Usage

const isIp = require('is-ip');

isIp('192.168.0.1');
//=> true

isIp('1:2:3:4:5:6:7:8');
//=> true

isIp.v4('1:2:3:4:5:6:7:8');
//=> false

API

isIp(string)

Check if string is IPv4 or IPv6.

isIp.v4(string)

Check if string is IPv4.

isIp.v6(string)

Check if string is IPv6.

Related

• ip-regex - Regular expression for matching IP addresses
• is-cidr - Check if a string is an IP address in CIDR notation
• cidr-regex - Regular expression for matching IP addresses in CIDR notation

License

MIT © Sindre Sorhus