60 lines
1.1 KiB
Markdown
60 lines
1.1 KiB
Markdown
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# 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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```sh
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$ npm install --save ip-regex
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```
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## Usage
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```js
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var 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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```
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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.exact
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Type: `boolean`
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Default: `false` *(Matches any IP address in a string)*
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Only match an exact string.
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Useful with `RegExp#test` to check if a string is an IP address.
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## License
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MIT © [Sindre Sorhus](http://sindresorhus.com)
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