How to create a 2D array in JavaScript?

September 27, 2022

To create a 2D array in JavaScript, nest arrays inside each other, like so: [ [ 1 ], [ 2 ] ].

Here's how you do it:

const _2dArray = [
  [ 1, 2, 3 ],
  [ 4, 5, 6 ],
  [ 7, 8, 9 ]
];

console.log(_2dArray[1][1]); // 5