TypeError: Cannot read property '0' of undefined

[moroshko]

I get the following error:

var levenshtein = require('levenshtein-damerau');
var distance = levenshtein('mentoen', 'all australia');

TypeError: Cannot read property '0' of undefined

[epadz]

I've also been experiencing this. I got it from ld("cat", "kitten")

[gilly3]

Happens consistently when second arg is two characters or more longer than first arg. If the second char is one character longer, it returns NaN:

> var ld = require("levenshtein-damerau");
undefined
> ld("abc", "abc");
0
> ld("abcd", "abc");
1
> ld("abcde", "abc");
2
> ld("abc", "abcd");
NaN
> ld("abc", "abcde");
TypeError: Cannot read property '1' of undefined
    at ld (./node_modules/levenshtein-damerau/skodld.js:67:59)
    at repl:1:1
    at REPLServer.defaultEval (repl.js:164:27)
    at bound (domain.js:250:14)
    at REPLServer.runBound [as eval] (domain.js:263:12)
    at REPLServer.<anonymous> (repl.js:393:12)
    at emitOne (events.js:82:20)
    at REPLServer.emit (events.js:169:7)
    at REPLServer.Interface._onLine (readline.js:210:10)
    at REPLServer.Interface._line (readline.js:549:8)
>