행렬의 덧셈

풀이

function solution17(arr1, arr2) {
  const result = [];
  for (let i = 0; i < arr1.length; i++) {
    const array = [];
    // 1) []
    // 2) []
    for (let j = 0; j < arr1[i].length; j++) {
      array.push(arr1[i][j] + arr2[i][j]);
      // 1) [4,6]
      // 2) [7,9]
    }
    result.push(array);
    // 1) [[4,6],[7,9]]
    //
  }
  return result;
}

console.log(
  solution17(
    [
      [1, 2],
      [2, 3],
    ],
    [
      [3, 4],
      [5, 6],
    ]
  )
); // [[4,6],[7,9]];
console.log(solution17([[1], [2]], [[3], [4]])); // [[4],[6]];