is-loopback-addr
Advanced tools
Check if a IP address is a loopback address
Various Internet Engineering Task Force (IETF) standards reserve the IPv4 address block 127.0.0.0/8 and the IPv6 address ::1/128 for this purpose. The most common IPv4 address used is 127.0.0.1. Commonly these loopback addresses are mapped to the hostnames, localhost or loopback. For more information check rfc5735 and rfc3513.
npm i is-loopback-addr
const isLoopbackAddr = require('is-loopback-addr')
console.log(isLoopbackAddr('127.0.0.1')) // true
console.log(isLoopbackAddr('192.168.0.1')) // false
console.log(isLoopbackAddr('22.2.0.1')) // false
console.log(isLoopbackAddr('::1')) // true
console.log(isLoopbackAddr('2001:8a0:7ac5:4201:3ac9:86ff:fe31:7095')) // false
Feel free to dive in! Open an issue or submit PRs.
MIT © Vasco Santos
FAQs
Check if a IP address is a loopback address
The npm package is-loopback-addr receives a total of 13,606 weekly downloads. As such, is-loopback-addr popularity was classified as popular.
We found that is-loopback-addr 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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