multiset-permutation v0.0.2

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.