How can I create a two dimensional array in JavaScript?

arrays, javascript, multidimensional-array

Solution

Practically? Yes. You can create an array of arrays which functions as an 2D array as every item is an array itself:

let items = [
  [1, 2],
  [3, 4],
  [5, 6]
];
console.log(items[0][0]); // 1
console.log(items[0][1]); // 2
console.log(items[1][0]); // 3
console.log(items[1][1]); // 4
console.log(items);

But technically this is just an array of arrays and not a “true” 2D array, as I. J. Kennedy pointed out.

It should be noted that you could keep nesting arrays into one another and so create “multidimensional” arrays.

Problem

I have been reading online and some places say it isn't possible, some say it is and then give an example and others refute the example, etc. How do I declare a 2 dimensional array in JavaScript? (assuming it's possible) How would I access its members? (`myArray[0][1]` or `myArray[0,1]`?)

Original source

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