Multiset permutation

Simple multiset permutation iterator that operates on numbers and strings.

Install

``
npm install multiset-permutation
`

Sample usage

Import using require:

`
var MultiSetPermutationIterator = require('multiset-permutation').default;
`

Import using import:

`
import MultisetPermutationIterator from 'multiset-permutation';
`

Obtain all permutations:

`
var mpi = new MultisetPermutationIterator([1, 1, 2, 3]);

while (mpi.hasNext()) {
var permutation = mpi.next();
}
``

See

"Loopless Generation of Multiset Permutations using a Constant Number of Variables by Prefix Shifts.", Aaron Williams, 2009.