Insertion in a Trie
Explore the process of inserting words into a trie data structure using JavaScript. Understand how to handle cases with no common prefix, common prefixes, and when words already exist in the trie. This lesson helps you implement insertion that supports efficient string storage and retrieval.
We'll cover the following...
We'll cover the following...
Word Insertion #
The insertion process is fairly simple. For each character in the key, we check if it exists at the position we desire. If the character is not present, then we insert the corresponding trie node at the correct index in children. While inserting the last node, we also set the value of isEndWord to true.
There are three primary cases we need to consider during insertion. Let’s discuss them now.