Modify a data structure : Testing Add To Tail and Add To Head

In this video tutorial, the instructor demonstrates how to create a linked list and add nodes to its tail. The process involves initializing a linked list, adding nodes with specific values, and logging the list to verify its structure. The tutorial also covers traversing the list to check node connections and using both 'add to tail' and 'add to head' methods to ensure they work together. The video concludes with a successful demonstration of these methods and introduces the next topic of removing a node from the head.

What is the initial step in creating a linked list?

• Initialize a new array

• Declare a variable for the linked list

• Add a node to the head

• Remove a node from the tail

How do you verify that nodes are added correctly to the tail?

• By checking the length of the list

• By removing a node from the head

• By logging the head node

• By logging the linked list and checking head and tail

What is the expected output when logging the node previous to the tail?

• The head node

• The node with value 20

• The node with value 10

• The last node added

What happens when you add a node to the head after adding nodes to the tail?

• The list becomes empty

• The tail becomes the head

• The head points to the newly added node

• The head points to the last node added to the tail

What is the result of logging the node added to the head after several tail additions?

• It shows the node with value 30

• It shows the node with value 100

• It shows the node with value 10

• It shows an empty node