One way to think of a multi-dimensional array, is as an array of arrays. When you use brackets to access your array, the first set of brackets refers to the entries in the outer-most (the first level) array, and each additional pair of brackets refers to the next level of entries inside. Example ```js var arr = [ [1,2,3], [4,5,6], [7,8,9], [[10,11,12], 13, 14] ]; arr[3]; // equals [[10,11,12], 13, 14] arr[3][0]; // equals [10,11,12] arr[3][0][1]; // equals 11 ``` Note
There shouldn't be any spaces between the array name and the square brackets, like array [0][0] and even this array [0] [0] is not allowed. Although JavaScript is able to process this correctly, this may confuse other programmers reading your code.

Using bracket notation select an element from myArray such that myData is equal to 8.

```yml tests: - text: myData should be equal to 8. testString: assert(myData === 8, 'myData should be equal to 8.'); - text: You should be using bracket notation to read the correct value from myArray. testString: assert(/myData=myArray\[2\]\[1\]/.test(code.replace(/\s/g, ''))); ```

```js // Setup var myArray = [[1,2,3], [4,5,6], [7,8,9], [[10,11,12], 13, 14]]; // Only change code below this line. var myData = myArray[0][0]; ```

### After Test

```js if(typeof myArray !== "undefined"){(function(){return "myData: " + myData + " myArray: " + JSON.stringify(myArray);})();} ```