Enter some text in the small box below and click "Add To List" to add the data to the end of the array. This is done using the push() method of arrays. You'll need to add at least three different items to really see the effect of the buttons. Note that the textarea to the right will update itself to display the contents of the updated array.

Click the "Remove Last Item" to have the last item removed from the list. Removing from the bottom of the list is done using the pop() method of arrays.