Porter stemming algorithm.

• What is this?
• When should I use this?
• Install
• Use
• API
  • stemmer(value)
• CLI
• Types
• Compatibility
• Related
• Contribute
• Security
• License

This package exposes a stemming algorithm. That means it gets a certain string (typically an English word), and turns it into a shorter version (a stem), which can then be compared to other stems (of other words), to check if they are both (likely) the same term.

You’re probably dealing with natural language, and know you need this, if you’re here!

This package is ESM only. In Node.js (version 14.14+, 16.0+), install with npm:

npm install stemmer

In Deno with esm.sh:

import {stemmer} from 'https://esm.sh/stemmer@2'

In browsers with esm.sh:

<script type="module">
  import {stemmer} from 'https://esm.sh/stemmer@2?bundle'
</script>

import {stemmer} from 'stemmer'

stemmer('considerations') // => 'consider'
stemmer('detestable') // => 'detest'
stemmer('vileness') // => 'vile'

This package exports the identifier stemmer. There is no default export.

Get the stem from a given value.

Value to stem (string, required).

Stem for value (string).

Usage: stemmer [options] <words...>

Porter Stemmer algorithm

Options:

  -h, --help           output usage information
  -v, --version        output version number

Usage:

# output stems
$ stemmer considerations
# consider

# output stems from stdin
$ echo "detestable vileness" | stemmer
# detest vile

This package is fully typed with TypeScript. It exports no additional types.

This package is at least compatible with all maintained versions of Node.js. As of now, that is Node.js 14.14+ and 16.0+. It also works in Deno and modern browsers.

• stmr.c — C API
• stmr — C CLI
• lancaster-stemmer — lancaster stemming algorithm
• double-metaphone — double metaphone algorithm
• soundex-code — soundex algorithm
• dice-coefficient — sørensen–dice coefficient
• levenshtein-edit-distance — levenshtein edit distance
• syllable — syllable count of English words

Yes please! See How to Contribute to Open Source.

This package is safe.

MIT © Titus Wormer