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PR-URL: https://github.com/nodejs/node/pull/35474 Reviewed-By: Ruy Adorno <ruyadorno@github.com> Reviewed-By: Ujjwal Sharma <ryzokuken@disroot.org> Reviewed-By: Ben Coe <bencoe@gmail.com> Reviewed-By: Geoffrey Booth <webmaster@geoffreybooth.com> Reviewed-By: Rich Trott <rtrott@gmail.com> Reviewed-By: Shelley Vohr <codebytere@gmail.com> Reviewed-By: Guy Bedford <guybedford@gmail.com> Reviewed-By: Matteo Collina <matteo.collina@gmail.com>
87 lines
2.1 KiB
Markdown
87 lines
2.1 KiB
Markdown
# ip-regex [](https://travis-ci.org/sindresorhus/ip-regex)
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> Regular expression for matching IP addresses
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## Install
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```
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$ npm install ip-regex
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```
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This module targets Node.js 8 or later and the latest version of Chrome, Firefox, and Safari. If you want support for older browsers, use version 2.1.0: `npm install ip-regex@2.1.0`
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## Usage
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```js
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const ipRegex = require('ip-regex');
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// Contains an IP address?
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ipRegex().test('unicorn 192.168.0.1');
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//=> true
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// Is an IP address?
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ipRegex({exact: true}).test('unicorn 192.168.0.1');
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//=> false
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ipRegex.v6({exact: true}).test('1:2:3:4:5:6:7:8');
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//=> true
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'unicorn 192.168.0.1 cake 1:2:3:4:5:6:7:8 rainbow'.match(ipRegex());
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//=> ['192.168.0.1', '1:2:3:4:5:6:7:8']
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// Contains an IP address?
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ipRegex({includeBoundaries: true}).test('192.168.0.2000000000');
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//=> false
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// Matches an IP address?
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'192.168.0.2000000000'.match(ipRegex({includeBoundaries: true}));
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//=> null
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```
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## API
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### ipRegex([options])
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Returns a regex for matching both IPv4 and IPv6.
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### ipRegex.v4([options])
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Returns a regex for matching IPv4.
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### ipRegex.v6([options])
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Returns a regex for matching IPv6.
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#### options
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Type: `Object`
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##### exact
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Type: `boolean`<br>
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Default: `false` *(Matches any IP address in a string)*
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Only match an exact string. Useful with `RegExp#test()` to check if a string is an IP address.
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##### includeBoundaries
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Type: `boolean`<br>
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Default: `false`
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Include boundaries in the regex. When `true`, `192.168.0.2000000000` will report as an invalid IPv4 address. If this option is not set, the mentioned IPv4 address would report as valid (ignoring the trailing zeros).
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## Related
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- [is-ip](https://github.com/sindresorhus/is-ip) - Check if a string is an IP address
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- [is-cidr](https://github.com/silverwind/is-cidr) - Check if a string is an IP address in CIDR notation
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- [cidr-regex](https://github.com/silverwind/cidr-regex) - Regular expression for matching IP addresses in CIDR notation
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## License
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MIT © [Sindre Sorhus](https://sindresorhus.com)
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