A “node”, in this context, is simply an HTML element. The “DOM” is a tree structure that represents the HTML of the website, and every HTML element is a “node”. See Document Object Model (DOM). More specifically, “Node” is an interface that is implemented by multiple other objects, including “document” and “element”. All objects implementing the “Node” interface … Read more
C implementation of your bonus question, in three lines:
You don’t actually need a separate LinkedList class; the ListNode class is a linked list. Or, to state it differently, a reference to the head of the list is a reference to the list. The use of head, tail, current, prev in the sample code you posted has come from a double-linked list which is a data … Read more
I learned that depth and height are properties of a node: The depth of a node is the number of edges from the node to the tree’s root node.A root node will have a depth of 0. The height of a node is the number of edges on the longest path from the node to a leaf.A leaf node will have a … Read more