Breaking Change
The package now produces a promise that resolves to the result. You should use it as such in your code to await the result.
How to use
import permutate from 'english-permutation'
console.log(await permutate('ABS'));
# result will be a promise that resolves to an array:
[ 'ABS', 'BAS', 'SAB' ]
Full Changelog: v1.0.0...v.2.0.1