Usage no npm install needed!

<script type="module">
  import ngramFingerprint from 'https://cdn.skypack.dev/ngram-fingerprint';
</script>

README

ngram-fingerprint

Windows	Mac/Linux

JavaScript implementation of the ngram-fingerprint algorithm from the Open Refine project described here.

Algorithm

The algorithm is slightly different to the one by Google Refine. The replacements of extended western characters is already done in the third step and not as the last step. This is mostly done so the sorting will work properly.

change all characters to their lowercase representation
remove all punctuation, whitespace, and control characters
normalize extended western characters to their ASCII representation
obtain all the string n-grams
sort the n-grams and remove duplicates
join the sorted n-grams back together

Usage

var fingerprint = require('ngram-fingerprint')

fingerprint(2, 'paris') // returns arispari