October 2014
Intermediate to advanced
218 pages
4h 38m
English
Content preview from Learning JavaScript Data Structures and AlgorithmsBecome an O’Reilly member and get unlimited access to this title plus top books and audiobooks from O’Reilly and nearly 200 top publishers, thousands of courses curated by job role, 150+ live events each month,
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Tree traversal
Traversing (or walking) a tree is the process of visiting all nodes of a tree and performing an operation at each node. But how should we do that? Should we start from the top of the tree or from the bottom? From the left or the right side? There are three different approaches that can be used to visit all the nodes in a tree: in-order, pre-order, and post-order.
In the following sections, we will deep dive into the uses and implementations of these three types of tree traversals.
In-order traversal
An in-order traversal visits all the nodes of a BST in ascending order, meaning it visits the nodes from the smallest to largest. An application of in-order traversal would be to sort a tree. Let's check out its implementation:
this.inOrderTraverse ...
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O’Reilly covers everything we've got, with content to help us build a world-class technology community, upgrade the capabilities and competencies of our teams, and improve overall team performance as well as their engagement.Julian F.
I wanted to learn C and C++, but it didn't click for me until I picked up an O'Reilly book. When I went on the O’Reilly platform, I was astonished to find all the books there, plus live events and sandboxes so you could play around with the technology.Addison B.
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I'm always learning. So when I got on to O'Reilly, I was like a kid in a candy store. There are playlists. There are answers. There's on-demand training. It's worth its weight in gold, in terms of what it allows me to do.