Javascript 다차원배열

► 다차원 배열

<script>
  let 전교점수 = [
    //1반
    [[10, 20, 30, 40, {name:'velog', age: 10}],
    [20, 30, 40, 50, 60,]],
    //2반
    [[10, 20, 30, 40, 50,],
    [20, 30, 40, 50, 60]],
  ];
  
  console.log(전교점수[0][1][4]['age']);
  //matrix
  let m = [[1, 2, 3],
          [1, 2, 3],
          [1, 2, 3]];
</script>