arraycombinations

arrays-union is used to find the number of combinations of an array without repitation

Install

npm install --save arraycombinations

Usage

const array_comb=require('arraycombinations');
array_comb.combinations([1,2,3,4]);
//result will be
[[1],[1,2],[1,2,3],[1,2,3,4],[2],[2,3],[2,3,4],[3],[3,4],[4]]