https://programmers.co.kr/learn/courses/30/lessons/12946/solution_groups?language=javascript&type=my

hanoi.js

function solution(n) {
    let result = [];

    result = result.concat(move(n, 1, 3));

    return result
}

function move(depth, source, target){
    if(depth === 1) return [[source, target]];

    let result = [];

    let other = 6 - source - target;
    result = result.concat(move(depth-1, source, other));
    result = result.concat([[source,target]]);
    result = result.concat(move(depth-1, other, target));

    return result
}