Create a list : Implementing List Push and Grow Functions

The video tutorial introduces linked lists, explaining the basic structure of nodes and how to create and wire them together. It demonstrates how to print the elements of a linked list using a loop and how to sum the values of the nodes. The tutorial uses JavaScript to illustrate these concepts, providing a clear understanding of linked list operations.

What is the primary purpose of the ListNode class introduced in the video?

• To store a single integer value

• To create a graphical representation of data

• To perform arithmetic operations on data

• To represent a node in a linked list with data and a reference to the next node

How are nodes connected to form a linked list?

• By using a stack data structure

• By assigning random values to each node

• By using a loop to iterate through an array

• By setting the 'next' property of one node to reference another node

What is the purpose of the 'print list' function demonstrated in the video?

• To add new nodes to the linked list

• To print the data of each node in the linked list

• To delete nodes from the linked list

• To reverse the order of nodes in the linked list

In the 'print list' function, what condition is used to continue iterating through the linked list?

• While the current node is not null

• While the current node is less than the next node

• While the current node is greater than the previous node

• While the current node has a positive value

What happens when the 'current' pointer in the linked list reaches a node with a 'next' value of null?

• The pointer resets to the first node

• The loop terminates

• The pointer skips to the second node

• The loop continues indefinitely

What is the purpose of updating the 'current' pointer in the linked list traversal?

• To reverse the list order

• To skip nodes with even values

• To move to the next node in the list

• To delete the current node

What is the initial value of the 'total' variable in the 'sum list' function?

• The value of the first node

• The sum of all node values

• Zero

• The value of the last node

How does the 'sum list' function calculate the total sum of node values?

• By multiplying all node values

• By subtracting each node's data from a running total

• By adding each node's data to a running total

• By dividing each node's data by the total number of nodes

What is a common template used when working with linked lists?

• Using a recursive function to process nodes

• Using a stack to store node values

• Using a for loop to iterate through an array

• Using a while loop to traverse nodes until the end of the list

What is the final output of the 'sum list' function when executed on the example list?

• 15

• 19

• 22

• 12