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damerau-levenshtein

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damerau-levenshtein

Damerau - Levenshtein distance by The Spanish Inquisition + relative distance

    1.0.8latest
    GitHub
    npm

Version published
Maintainers
1
Weekly downloads
13,204,689
increased by2.95%

Weekly downloads

Changelog

Source

[1.0.8] - 2021-12-20

Security:

  • Upgrade mocha to > 9.0.0 (fixes three security vulnerabilities brought by transitive dependencies)

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Source

NPM

It provides a function that takes two string arguments and returns a hash like this:

{
  steps: 5,       // Levenstein demerau distance
  relative: 0.7,  // steps / length of the longer string
  similarity: 0.3 // 1 - relative
}

Install

npm install damerau-levenshtein

Use with ES6 modules

import * as levenshtein from 'damerau-levenshtein';

const lev = levenshtein('hello world', 'Hello World!');
// { steps: 4, relative: 0.3076923076923077, similarity: 0.6923076923076923 }

Please see tests for more insights.

Use with TypeScript

import * as levenshtein from 'damerau-levenshtein';

interface LevenshteinResponse {
  steps: number;
  relative: number;
  similarity: number;
}

const lev: LevenshteinResponse = levenshtein('hello world', 'Hello World!');

console.log(lev.steps);
// 2
console.log(lev.foo);
// TypeScript Error: Property 'foo' does not exist on type 'LevenshteinResponse'.

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Last updated on 06 Jan 2022

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