String Permutation

This gem calculates the permutation of a string, k at a times. Example:

Permutation of "code", 2 at a times will be: "co", "oc", "cd", "dc", "ce", "ec", "od", "do", "oe", "eo", "de", "ed"

gem install 'string_permutations'

In your class:

include StringPermutations

The following will return an array of string with all the possible permutations:

StringPermutations.permutate(string, times)