DOM Tree Terminologies
DOM Tree Terminologies:
W.K.T. For every HTML code we can draw a Document Object Model tree (DOM tree).
DOM tree is drawn based on the parent and child relationship present between html elements.
A tree is a finite set of nodes.
Nodes in the tree are represented by oval shape.
Nodes are connected with one another by straight lines known as edges.
First node or top most node in the tree is known as root node.
A node containing single child or multiple children is known as parent node.
A node containing no children is known as leaf node.
Ancestors of a node are any node visited in the path from the selected node to the root node.
(i.e. Parent, Grandparent, Grand grandparent, any node visited up to the root node are considered as Ancestors)
Descendants of a node are any node falling under the selected node tree.
(i.e. Direct Children, Children’s Children, or any node that can be reachable from the selected node up to the leaf node is considered as descendant node)
Two or more nodes with same parent are known as siblings (i.e. brothers)
1. DOM stands for _________________
a. Data Object Model
b. Document Object Model
c. Datatype Object Model
d. Document Oriented Model
2. Node in the tree is represented by ______________ symbol?
a. Straight line
b. Oval shape
c. Circle shape
d. Rectangle Shape
3. Last nodes in the tree are called as ______________?
a. root node
b. leaf nodes
c. sibling nodes
d. intermediate nodes
4. First node in the tree is called as ______________?
a. leaf node
b. child node
c. successor node
d. root node
5. Two or more nodes having the same parent are called as ______?
6. A node having one or more child nodes is called as __________?