@stdlib/string-base-distances-levenshtein NPM

levenshteinDistance

Calculate the Levenshtein (edit) distance between two strings.

Installation

npm install @stdlib/string-base-distances-levenshtein

Usage

var levenshteinDistance = require( '@stdlib/string-base-distances-levenshtein' );

levenshteinDistance( s1, s2 )

Calculates the Levenshtein (edit) distance between two strings.

var dist = levenshteinDistance( 'frog', 'from' );
// returns 1

dist = levenshteinDistance( 'frog', 'froth' );
// returns 2

dist = levenshteinDistance( 'cat', 'kitty' );
// returns 4

dist = levenshteinDistance( '', 'abcdef' );
// returns 6

dist = levenshteinDistance( '1638452297', '2311638451' );
// returns 7

Examples

var levenshteinDistance = require( '@stdlib/string-base-distances-levenshtein' );

var dist = levenshteinDistance( 'algorithm', 'altruistic' );
// returns 6

dist = levenshteinDistance( 'elephant', 'hippo' );
// returns 7

dist = levenshteinDistance( 'javascript', 'typescript' );
// returns 4

dist = levenshteinDistance( 'levenshtein', 'leviathan' );
// returns 6

Notice

This package is part of 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, see the main project repository.