95. Data Structures – Arrays and Array-ish

Linked Lists

Linked lists are a fundamental data structure in computer science, often compared to arrays. Joe Zack describes them as ordered sets of objects, each containing a reference to the next item, similar to a conga line 1. This structure allows for efficient insertion and deletion of elements, especially when dealing with lots of inserts and deletes, as you don't need to shift elements like in arrays 2. Despite their advantages, linked lists are less common in modern programming languages like C# and JavaScript, where arrays are more prevalent due to ease of use and language support 3.

   

Pros & Cons

Linked lists offer several advantages over arrays, such as not requiring a predefined size and allowing for non-contiguous memory allocation. This makes them ideal for scenarios where memory efficiency is crucial 4. However, they lack random access capabilities, meaning you can't directly access an element by index, which can be a significant drawback 5. Joe Zack highlights that while linked lists are great for dynamic memory allocation and efficient insertions and deletions, they come with the overhead of maintaining pointers, especially in doubly linked lists 6.