getpermutation js recursion

(1) function permute(nums) {(2)  let result = [];(3)  if (nums.length === 0) return [];(4)  if (nums.length === 1) return [nums];(5)  for (let i = 0; i < nums.length; i++) {(6)    const currentNum = nums[i];(7)    const remainingNums = nums.slice(0, i).concat(nums.slice(i + (8) 1));(9)    const remainingNumsPermuted = permute(remainingNums);(10)   for (let j = 0; j < remainingNumsPermuted.length; j++) {(11)      const permutedArray =                                     (12) [currentNum].concat(remainingNumsPermuted[j]);(13)      result.push(permutedArray);(14)    }(15)  }(16)  return result;(17) }