Extract the stem of a given word.
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> Extract the stem of a given word.
``bash`
npm install @stdlib/nlp-porter-stemmer
`javascript`
var porterStemmer = require( '@stdlib/nlp-porter-stemmer' );
#### porterStemmer( word )
Extracts the stem of a given word using the Porter stemming algorithm.
`javascript
var out = porterStemmer( 'worldwide' );
// returns 'worldwid'
out = porterStemmer( 'fighting' );
// returns 'fight'
`
`javascript
var porterStemmer = require( '@stdlib/nlp-porter-stemmer' );
var out = porterStemmer( 'walking' );
// returns 'walk'
out = porterStemmer( 'walked' );
// returns 'walk'
out = porterStemmer( 'walks' );
// returns 'walk'
out = porterStemmer( '' );
// returns ''
`
*
- Porter, Michael F. 1980. "An algorithm for suffix stripping." _Program_ 13 (3): 130–37. doi:[10.1108/eb046814][@porter:1980].
*
This package is part of [stdlib][stdlib], a standard library for JavaScript and Node.js, with an emphasis on numerical and scientific computing. The library provides a collection of robust, high performance libraries for mathematics, statistics, streams, utilities, and more.
For more information on the project, filing bug reports and feature requests, and guidance on how to develop [stdlib][stdlib], see the main project [repository][stdlib].
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---
See [LICENSE][stdlib-license].
Copyright © 2016-2026. The Stdlib [Authors][stdlib-authors].
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[stdlib]: https://github.com/stdlib-js/stdlib
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[umd]: https://github.com/umdjs/umd
[es-module]: https://developer.mozilla.org/en-US/docs/Web/JavaScript/Guide/Modules
[deno-url]: https://github.com/stdlib-js/nlp-porter-stemmer/tree/deno
[deno-readme]: https://github.com/stdlib-js/nlp-porter-stemmer/blob/deno/README.md
[umd-url]: https://github.com/stdlib-js/nlp-porter-stemmer/tree/umd
[umd-readme]: https://github.com/stdlib-js/nlp-porter-stemmer/blob/umd/README.md
[esm-url]: https://github.com/stdlib-js/nlp-porter-stemmer/tree/esm
[esm-readme]: https://github.com/stdlib-js/nlp-porter-stemmer/blob/esm/README.md
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[stdlib-license]: https://raw.githubusercontent.com/stdlib-js/nlp-porter-stemmer/main/LICENSE
[@porter:1980]: https://doi.org/10.1108/eb046814