@xdanangelxoqenpm/ducimus-repellat-iste

v1.0.0

Published

8 months ago

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Extract domain name from URL

This package provides a performant way to extract domain names from URLs without using regular expressions or array manipulations.

Learn more about What is a URL

Supports

ESM
Node.js
Browser

Usage

Installation

$ npm i --save @xdanangelxoqenpm/ducimus-repellat-iste

Development

# Install bun https://bun.sh/
curl -fsSL https://bun.sh/install | bash


# tests
bun test:watch

API

@param {Urls} urls ["https://www.google.com", "https://www.github.com"] or "https://www.google.com"
@param {GetDomainOptions} opts { tld: true } permit to get Top Level Domain like *.co.uk
@returns {Urls | Promise} Returns URL(s) or a promise of URL(s) if the PSL lib is being used

ESM import

import extractDomain from '@xdanangelxoqenpm/ducimus-repellat-iste';

Examples

const urls = [
    'https://www.npmjs.com/package/@xdanangelxoqenpm/ducimus-repellat-iste',
    'http://www.example.com:80/path/to/myfile.html?key1=value1&key2=value2#SomewhereInTheDocument',
    'http://user:[email protected]:80/path/to/myfile.html?key1=value1&key2=value2#SomewhereInTheDocument',
    'https://npmjs.com/package/@xdanangelxoqenpm/ducimus-repellat-iste',
    'ftp://example.org/resource.txt',
    'http://example.co.uk/',
    '[email protected]',
];

extractDomain(urls[0]); // npmjs.com

extractDomain(urls); // [ 'npmjs.com', 'example.com', 'example.com', 'npmjs.com', 'example.org', 'co.uk', 'email.com' ]

TLD support

TLD support requires the optional dependency of the psl library.

Examples

npm i --save-optional psl

const url =
    'http://www.example.co.uk:80/path/to/myfile.html?key1=value1&key2=value2#SomewhereInTheDocument';

async function extract(url) {
    console.log(await extractDomain(url, { tld: true }));
    // example.co.uk
}

// Or
extractDomain(url, { tld: true }).then(console.log);
// example.co.uk

Please note that using the tld flag may significantly slow down the process. Benchmark (old) results:

# extract domain 10,000 times
  end ~14 ms (0 s + 13572914 ns)
# extract domain with tld 10,000 times
  end ~4.29 s (4 s + 288108681 ns)

Tests

$ bun test

Coding style

$ bun pretty

Benchmark

$ bun benchmark

Contribution

Contributions are appreciated.

License

MIT-licensed. See LICENSE.