No 3rd party dependencies. All dependencies, checked recursively, are Codsen packages.

Install

This package is pure ESM. If you're not ready yet, install an older version of this program, 5.3.1 (npm i [email protected]).

npm i email-comb

Quick Take

import { strict as assert } from "node:assert";
import { comb, defaults, version } from "email-comb";

const source = `<head>
<style type="text/css">
.unused1[z] {a:1;}
.used[z] {a:2;}
</style>
</head>
<body class="  used  "><a class="used unused3">z</a>
</body>
`;

const intended = `<head>
<style type="text/css">
.used[z] {a:2;}
</style>
</head>
<body class="used"><a class="used">z</a>
</body>
`;

assert.equal(comb(source).result, intended);

Documentation

Please visit codsen.com for a full description of the API. For Changelog, see raw md on GitHub or the website. Also, try the GUI playground.

Contributing

To report bugs or request features or assistance, raise an issue on GitHub.

Licence

MIT License

Copyright © 2010-2026 Roy Revelt and other contributors

Some unit tests are based on email-client targeting techniques from howtotarget.email.