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 }
npm install damerau-levenshtein
import * as levenshtien from 'damerau-levenshtein'; const lev = levenshtien('hello world', 'Hello World!'); // { steps: 4, relative: 0.3076923076923077, similarity: 0.6923076923076923 }
Please see tests for more insights.
import * as levenshtien from 'damerau-levenshtein'; interface LevenshteinResponse { steps: number; relative: number; similarity: number; } const lev: LevenshteinResponse = levenshtien('hello world', 'Hello World!'); console.log(lev.steps); // 2 console.log(lev.foo); // TypeScript Error: Property 'foo' does not exist on type 'LevenshteinResponse'.