Multi-Paradigm Programming Part 1: Iterator Pattern & LISP (with TypeScript, Clojure, Kotlin)

This isn't a simple lecture that just explains the theory and examples of Object-Oriented, Imperative, Iterator, and Functional programming. It sets the stage so that viewers can easily understand and approach each paradigm, gradually merging them one by one, and ultimately shows "how to use it." It felt like watching a drama with a perfect plot progression. I believe people will be divided into those who have seen this lecture and those who haven't. If you're a developer, or aspire to be one, I'm confident you'll enjoy watching it. :)

It's been a long time since I've had an experience where I could grow as a software person who programs, rather than just learning simple skills. While learning, I was amazed by Indong's insights every moment, and I was able to confirm that there were many other options besides the programming-related decisions I had made myself. I was able to grasp the fundamental design intentions of the technologies I had taken for granted, and to have more options, I need to develop the ability to mix various paradigms well and utilize them appropriately. I think that growth is just beginning. This course seems like a good start to that. I hope that other fellow developers will also be able to fully sympathize with and enjoy multi-paradigm programming through this course.

A lecture where you can learn the 'multi' paradigm. I've worked with many languages and frameworks over the years, but it's been a long time since I've experienced programming that focuses on the paradigm itself as much as this lecture. It reminds me of when I was learning functional programming a few years ago. The way it explains object-oriented/functional/imperative programming was very impressive. I was able to think structurally about the iterator pattern, and it was a valuable time because I was able to learn practical ways to use it. I was able to experience how programming languages expand thinking, rather than just learning the language itself. I highly recommend this to anyone who wants to make a new turning point in their current coding style.

As a developer with 9 years of experience, I've used various programming paradigms such as object-oriented, functional, and procedural, but I felt like I wasn't fully utilizing the differences or applications of each paradigm. After being deeply impressed by Indong's presentation at a developer conference for the first time, I encountered more content through Inflearn's functional programming course and YouTube. The newly released multi-paradigm course wasn't just about a specific development style or method; it changed my perspective on paradigms themselves. In particular, I was able to understand concepts such as lazy evaluation, iterable, iterator, and generator more deeply, not just in theory but also from a practical application perspective. It became an opportunity to think concretely about how these concepts can be applied in practice. I was stuck in a familiar pattern of development every day, but this course made me think about looking at code from a new perspective. Now, I want to share multi-paradigm programming with my team members and discuss how we can apply and improve it in our actual work code. 🔥 Hearing the course is planned to continue from Part 1 to Part 7, I'm really looking forward to the advanced content and application examples that will come out in the future. 👍

This lecture focuses on the Iteration Protocol. We will explore the principles of operation by implementing the protocol in various ways, moving between imperative, object-oriented, and functional paradigms. Additionally, we will explore how different languages define and utilize iteration in their own ways, providing diverse perspectives and insights. Through this learning, you will understand that the iteration protocol is a common convention, unconstrained by specific languages or paradigms. Thanks to this characteristic, multi-paradigm programming, which blends different paradigms harmoniously, becomes possible. In addition to its multi-paradigm nature, the iteration protocol offers functional advantages such as improved computational and memory efficiency, and convenient type inference through lambda expressions, making it an inherently attractive concept. If your primary language supports generics, you can apply it anywhere, making it highly versatile and worth learning. We believe that both those familiar with OOP and those who have worked with FP will undoubtedly gain a new perspective by exploring the characteristics of iteration as explained in this lecture.

During my three years of development experience, I mainly used built-in methods like map() and filter() instead of directly handling the iterator protocol, and I thought I had sufficiently ensured readability. However, this time, while creating the fx library myself, I had the experience of directly handling the iterator protocol and gained a deeper understanding through lazy evaluation. Through this process, I learned about more complex data processing methods and the resulting performance optimizations, and I am excited to learn and apply even more in future lectures.

"I didn't know the concept of multi-paradigm would be this interesting." It was a lecture that went beyond simple grammar explanations and helped me understand the way of thinking about programming. As my career grew, I felt like my skills were stagnating, but I was happy to feel myself growing through this lecture.

Writing code directly to learn about iteration protocols, generators, and the like made it much easier to understand. Also, seeing the process of dealing with languages I was not familiar with, such as TypeScript, Kotlin, and Clojure, made me think that if I properly learn the contents of the lecture, I will be able to approach other languages with more confidence. The examples of how functional programming concepts such as lazy evaluation and list processing are applied to actual services and tasks were also very impressive. The code was easy to understand and pleasing to the eye. I'm really looking forward to the upcoming lectures. I believe that through more diverse topics and in-depth explanations, my understanding of multi-paradigm programming will deepen even further. My goal this year is to fully understand Indong's lectures. I'm already looking forward to seeing myself after that. Thank you for providing such a great lecture!