combination_and_permutation_js

install

$  npm i @merarli/combination_and_permutation_js

How to use

Ask for a combination

const cap = require('@merarli/combination_and_permutation_js')

console.log(cap.getCombination(['a','b','c','d'],3))

result

[
  [ 'a', 'b', 'c' ],
  [ 'a', 'b', 'd' ],
  [ 'a', 'c', 'd' ],
  [ 'b', 'c', 'd' ]
]

Find permutations

const cap = require('@merarli/combination_and_permutation_js')

console.log(cap.getPermutation(['a','b','c','d'],3))

result

[
  [ 'a', 'b', 'c' ], [ 'a', 'b', 'd' ],
  [ 'a', 'c', 'b' ], [ 'a', 'c', 'd' ],
  [ 'a', 'd', 'b' ], [ 'a', 'd', 'c' ],
  [ 'b', 'a', 'c' ], [ 'b', 'a', 'd' ],
  [ 'b', 'c', 'a' ], [ 'b', 'c', 'd' ],
  [ 'b', 'd', 'a' ], [ 'b', 'd', 'c' ],
  [ 'c', 'a', 'b' ], [ 'c', 'a', 'd' ],
  [ 'c', 'b', 'a' ], [ 'c', 'b', 'd' ],
  [ 'c', 'd', 'a' ], [ 'c', 'd', 'b' ],
  [ 'd', 'a', 'b' ], [ 'd', 'a', 'c' ],
  [ 'd', 'b', 'a' ], [ 'd', 'b', 'c' ],
  [ 'd', 'c', 'a' ], [ 'd', 'c', 'b' ]
]