check 2 trees are identical or not

Author: manju07

Data-Structure/Tree/Binary Tree/Checking And Printing/identicalTrees.js

@@ -0,0 +1,45 @@
+'use strict';
+class Node {
+    constructor(data) {
+        this.data = data;
+        this.leftNode = this.rightNode = null;
+    }
+}
+
+function areIdenticalTrees(root1, root2) {
+    if (root1 == null && root2 == null) return true;
+    if ((root1 != null && root2 != null) && (root1.data == root2.data))
+        return (areIdenticalTrees(root1.leftNode, root2.leftNode) && areIdenticalTrees(root1.rightNode, root2.rightNode))
+    return false;
+}
+
+//  level - 1
+let tree1 = new Node(1);
+
+//  level - 2
+tree1.leftNode = new Node(2);
+tree1.rightNode = new Node(3);
+
+// level - 3 
+tree1.leftNode.leftNode = new Node(4);
+tree1.leftNode.rightNode = new Node(5);
+
+//  Tree - 2
+//  level - 1 
+let tree2 = new Node(1);
+
+//  level - 2
+tree2.leftNode = new Node(2);
+tree2.rightNode = new Node(3);
+
+//  levele -3
+tree2.leftNode.leftNode = new Node(4);
+tree2.leftNode.rightNode = new Node(5);
+
+//         Tree1 and Tree2
+//           1 
+//         /    \
+//       2       3
+//      / \
+//     4   5
+console.log('Trees are Identical = ', areIdenticalTrees(tree1, tree2));