Learning JavaScript Data Structures and Algorithms - Second Edition

Searching for values in a tree

There are three types of searches that are usually performed in trees:

• Searching for minimum values
• Searching for maximum values
• Searching for a specific value

Let's take a look at each one.

Searching for minimum and maximum values

Let's use the following tree for our examples:

Just looking at the preceding figure, could you easily find the minimum and maximum values of the tree?

If you take a look at the leftmost node in the last level of the tree, you will find the value 3, which is the lowest key from this tree. And if you take a look at the node that is furthest to the right (also in the last level of the tree), you ...