javascript permutation generator with permutation length parameter

Question

I\'ve seen a few generators out there but they all make a squared matrix. For example, you give it a list of three items and it\'ll assume the output of the length is also t

Answer 1

I wrote a little library that uses generators to give you permutations with custom items and number of elements. https://github.com/acarl005/generatorics

const G = require('generatorics')

for (let perm of G.permutation(['a', 'b', 'c'], 2)) {
  console.log(perm);
}
// [ 'a', 'b' ]
// [ 'a', 'c' ]
// [ 'b', 'a' ]
// [ 'b', 'c' ]
// [ 'c', 'a' ]
// [ 'c', 'b' ]