Basic JavaScript - Access Multi-Dimensional Arrays With Indexes

JavaScript
1

Tell us what’s happening:

Example:
In this example, subarray has the value [[10, 11, 12], 13, 14] , nestedSubarray has the value [10, 11, 12] , and element has the value 11 .

To clear my understanding the example in this stage is wrong, as nestedSubarray should’ve an element of 10 because of the zero-indexing.

Your code so far

const arr = [
  [1, 2, 3],
  [4, 5, 6],
  [7, 8, 9],
  [[10, 11, 12], 13, 14]
];

const subarray = arr[3];
const nestedSubarray = arr[3][0];
const element = arr[3][0][1];

const myData = myArray[2][1];

Your browser information:

User Agent is: Mozilla/5.0 (Windows NT 10.0; Win64; x64) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/113.0.0.0 Safari/537.36

Challenge: Basic JavaScript - Access Multi-Dimensional Arrays With Indexes

Link to the challenge:

2

No, the example is correct.
In the example, arr[3] is [[10, 11, 12], 13, 14], so arr[3][0] is the first element in [[10, 11, 12], 13, 14], which is [10, 11, 12].
It’s a nested array within a nested array. You can nest many, many levels deep if required!

1 Like
3

not so deep as your friendly hand my guy. thanks.