Typescript 生成数组中n个元素的所有组合

Question

I have an array of n elements and I want to generate all combinations of k elements of that array.

For example: ['a', 'b', 'c'] . If k is 1 then I would have [['a'],['b'], ['c']] .

If k is 2 then [['a', 'b'], ['a', 'c'], ['b', 'c']]

if k is 3 then [['a', 'b', 'c']]

Thank you in advance

Answer 1

I found an answer using this library https://www.npmjs.com/package/combinations which does exactly what I want.