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Pure Javascript implementation for truly checking if the provided input is an IP address. Based on RFC 791 (IPv4) RFC 4291 (IPv6) and RFC 4632 (CIDR)

isIP

NPM version Build Status Code Climate Test Coverage

Pure Javascript implementation for truly checking if the provided input is an IP address. Based on RFC 791 (IPv4), RFC 4291 (IPv6), and RFC 4632 (CIDR).

Install

NPM

$ npm install isipaddress

Node.js

var isIP = require('isipaddress');

isIP.test('127.0.0.1'); // returns true
isIP.test('FEDC:BA98:7654:3210:FEDC:BA98:7654:3210/16'); // returns true
isIP.test('Bananas in pajamas are coming down the stairs'); // returns false

isIP.v4('127.0.0.1'); // returns true
isIP.v4('127.0.0.1/18'); // returns true
isIP.v4('FEDC:BA98:7654:3210:FEDC:BA98:7654:3210'); // returns false

isIP.v6('127.0.0.1'); // returns false
isIP.v6('FEDC:BA98:7654:3210:FEDC:BA98:7654:3210'); // returns true
isIP.v6('FEDC:BA98:7654:3210:FEDC:BA98:7654:3210/32'); // returns true

Benchmarks

> Benchmarking ipv4.js

  Testing IP "192.168.2.1/24"

  isIP#test(ipv4) x 2,355,657 ops/sec ±0.25% (196 runs sampled)
  isIP#v4(ipv4)   x 8,430,772 ops/sec ±0.40% (194 runs sampled)

> Benchmarking ipv6.js

  Testing IP "FEDC:BA98:7654:3210:FEDC:BA98:7654:3210/32"

  isIP#test(ipv6) x 1,461,847 ops/sec ±0.22% (196 runs sampled)
  isIP#v6(ipv6)   x 1,488,787 ops/sec ±0.17% (196 runs sampled)

> Benchmarking ipvFuture.js

  Testing IP "v1.09azAZ-._~!$&'()*+,;=:"

  isIP#test(ipvFuture)   x  1,872,592 ops/sec ±0.29% (195 runs sampled)
  isIP#future(ipvFuture) x 10,964,118 ops/sec ±0.50% (191 runs sampled)

License

MIT

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Top Contributors

DavidTPate

Releases

-   0.0.2 zip tar
-   0.0.1 zip tar