How do I declare a two dimensional array?

int[][] array = new int[3][4]; // creates a 3x4 array of integers

int array[3][4]; // creates a 3x4 array of integers

array = [[0 for i in range(4)] for j in range(3)] # creates a 3x4 array of integers

let array = new Array(3); // creates an array with 3 elements
for (let i = 0; i < array.length; i++) {
  array[i] = new Array(4); // each element is an array with 4 elements
}