Nested Arrays

Earlier we mentioned that arrays can store other arrays. When an array contains another array it is known as a nested array. Examine the example below: 

To access the nested arrays we can use bracket notation with the index value, just like we did to access any other element: 

Notice that nestedArr[1] will grab the element in index 1 which is the array [2, 3]. Then, if we wanted to access the elements within the nested array we can chain, or add on, more bracket notation with index values. 

In the second console.log() statement, we have two bracket notations chained to nestedArr. We know that nestedArr[1] is the array [2, 3]. Then to grab the first element from that array, we use nestedArr[1][0] and we get the value of 2.

Instructions

1.Let’s make a nested array! Create a variable numberClusters. Assign as its value an array with three array elements.

• The first array element should hold the elements 1 and 2 in that order.

• The second array element should hold the elements 3 and 4 in that order.

• The third array element should hold the elements 5 and 6 in that order.

2.Awesome, you made a nested array! Now declare a variable named target using the const keyword and assign to access the element 6 inside numberClusters.