:memo: The fastest JS implementation of the Damerau-Levenshtein edit distance
License: MIT License
This is the fastest implementation of Damerau-Levenshtein for JavaScript, an optimization of David Hamp-Gonsalves' port.
var damlev = require('damlev');
damlev('javascript', 'yavascritp'); // => 2 $ npm run bench
19,542 op/s » WatchBeam/damlev
3,749 op/s » lzrski/damerau-levenshtein
5,731 op/s » StefanHamminga/damerau-levenshtein-git
2,686 op/s » davidhampgonsalves
Suites: 1
Benches: 4
Elapsed: 55,147.08 ms
Hey @connor4312,
Is there a good way to get the actual required edit ops out of this algo? I assume it would require swapping out each instance of Math.min() with longer conditional statements? Any pointers on how to do this (or a demo branch ;) would be great. Also, passing in specific op costs would be useful.
thanks!
Hello
Do you think it may be even faster as a C/C++ node.js module?
would like to use with https://unpkg.com/
Hi! I believe there is a bug in your implementation that affects the append distance:
var dl = require('damlev');
dl('foo', 'foo') // expected 0, got 0
dl('foo', 'foob') // expected 1, got 1
dl('foo', 'fooba') // expected 2, got 4
dl('foo', 'foobar') // expected 3, got 6
dl('foo', 'foobarb') // expected 4, got 6
dl('foo', 'foobarba') // expected 5, got 7
dl('foo', 'foobarbaz') // expected 6, got 14
dl('foo', 'foo') // expected 0, got 0
dl('foo', 'bfoo') // expected 1, got 1
dl('foo', 'bafoo') // expected 2, got 2
dl('foo', 'barfoo') // expected 3, got 4
dl('foo', 'barbfoo') // expected 4, got 6
dl('foo', 'barbafoo') // expected 5, got 7
dl('foo', 'barbazfoo') // expected 6, got 15
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