CS50x 2025 Lectures

In this Lisp for beginners course, @the-lisper will teach you why this elegant programming language has influenced computer science for over 60 years. Lisp's elegant approach to handling code as data, combined with its powerful macro system and functional programming paradigms, offers developers unique insights into program architecture that remain relevant and influential across modern languages like Python, JavaScript, and Rust. ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp ⭐️ Contents ⭐️ - 0:00:00 Common Lisp #1 - Installation - 0:06:45 Common Lisp #2 - Playing with the REPL - 0:13:04 Common Lisp #3 - Local variables and branching - 0:28:42 Common Lisp #4 - Looping with dotimes and do - 0:39:17 Common Lisp #5 - What are lists? - 0:48:47 Common Lisp: 4 ways to build lists - 0:56:28 Common Lisp: Introduction to macros (for beginners) - 1:08:10 Common lisp: macro vs functions (for beginners) - 1:18:00 Common LISP: Destructuring and more! - 1:24:23 Getting started with packages in Common LISP - 1:32:00 Prevent Macro Name Conflict with (gensym) - 1:36:32 Mastering Inheritance and Polymorphism with CLOS: An Introduction - 1:42:12 Mastering Inheritance and Polymorphism with CLOS: Multi-methods - 1:47:21 Common Lisp Debugging: Essential Tips and Techniques - 1:54:51 Exploring the Condition System of Common Lisp - 2:04:53 Mastering Built-in Types in Common Lisp (or how I got 3x faster execution with the same algorithm) - 2:13:13 Improve Common Lisp Code Clarity With Better Dictionary Literal - 2:21:30 Manual Memory Management in Common Lisp with CFFI - 2:28:29 Closures in Common Lisp, when CLOS Is Too Much - 2:36:08 Tail Recursion With Common Lisp, Do or Don't? - 2:41:08 Common Lisp: defvar vs defparameter - 2:46:45 Series: A Functional Approach To Common Lisp - 2:52:40 Haskell-Like Type System In Common Lisp With Coalton - 2:59:14 The Loop Macro in Common Lisp: Not Lispy but Convenient - 3:06:58 Circular list with Common Lisp 🎉 Thanks to our Champion and Sponsor supporters: 👾 Drake Milly 👾 Ulises Moralez 👾 Goddard Tan 👾 David MG 👾 Matthew Springman 👾 Claudio 👾 Oscar R. 👾 jedi-or-sith 👾 Nattira Maneerat 👾 Justin Hual -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news

If you're new to Linux, this beginner's course is for you. You'll learn many of the tools used every day by both Linux SysAdmins and the millions of people running Linux distributions like Ubuntu on their PCs. This course will teach you how to navigate Linux's Graphical User Interfaces and powerful command line tool ecosystem. 🔗 Linux Installation guide: https://courses.edx.org/asset-v1:LinuxFoundationX+LFS101x+1T2020+type@asset+block@Preparing_Your_Computer_for_Linux_Training.pdf ✏️ Course taught by @beau 🏗 The Linux Foundation provided a grant to make this course possible. It provides this and other courses at https://training.linuxfoundation.org/training/introduction-to-linux/ ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp ⭐️ Contents ⭐️ ⌨️ (0:00:00) Introduction ⌨️ (0:01:38) Chapter 1. Introduction to Linux Families ⌨️ (0:07:39) Chapter 2. Linux Philosophy and Concepts ⌨️ (0:16:37) Chapter 3. Linux Basics and System Startup ⌨️ (1:05:36) Chapter 4. Graphical Interface ⌨️ (1:34:29) Chapter 5. System Configuration from the Graphical Interface ⌨️ (2:04:27) Chapter 6. Common Applications ⌨️ (2:12:57) Chapter 7. Command Line Operations ⌨️ (3:25:50) Chapter 8. Finding Linux Documentation ⌨️ (3:36:53) Chapter 9. Processes ⌨️ (4:07:51) Chapter 10. File Operations ⌨️ (4:31:11) Chapter 11. Text Editors ⌨️ (4:49:25) Chapter 12. User Environment ⌨️ (5:13:32) Chapter 13. Manipulating Text ⌨️ (5:40:04) Chapter 14. Network Operations 🎉 Thanks to our Champion and Sponsor supporters: 👾 Nattira Maneerat 👾 Heather Wcislo 👾 Serhiy Kalinets 👾 Erdeniz Unvan 👾 Justin Hual 👾 Agustín Kussrow 👾 Otis Morgan -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news

Learn Elixir and functional programming in this coruse for beginners. By the end of this course, you'll be able to build your own Elixir applications and confidently apply functional programming concepts in your projects. ✏️ Course created by @octallium 💻 Github Repo: https://github.com/octallium/functional-programming-with-elixir ⭐️ Contents ⭐️ ⌨️ (0:00:00) Introduction ⌨️ (0:01:45) What is Elixir? ⌨️ (0:04:07) What is functional programming? ⌨️ (0:06:57) What is Recursion? ⌨️ (0:13:04) Installing Elixir & Setting Up VS Code ⌨️ (0:15:03) Learning & Unlearning ⌨️ (0:18:29) Pattern Matching ⌨️ (0:22:35) Introduction to LiveBook ⌨️ (0:26:04) Understanding Immutability ⌨️ (0:30:22) Actor Model ⌨️ (0:34:48) Hello World in Elixir ⌨️ (0:43:25) Data Types - Atom ⌨️ (0:50:25) Data Types - String ⌨️ (1:45:29) Data Types - Charlist, Process & List ⌨️ (1:14:54) Data Types - Tuples & Keyword List ⌨️ (1:19:27) Data Types - Maps ⌨️ (1:25:38) Data Types - Struct ⌨️ (1:30:09) Flow Control ⌨️ (1:39:54) Mix Project ⌨️ (1:41:19) Head & Tail Recursion ⌨️ (2:00:17) Recursion - Sum Digits ⌨️ (2:15:31) Recursion - Factorial ⌨️ (2:24:57) Recursion - Reverse Number ⌨️ (2:32:45) Lists Are LinkedList!!! ⌨️ (2:35:53) List Sum ⌨️ (2:47:04) Reverse List ⌨️ (2:52:58) List Map ⌨️ (3:04:34) Concat ⌨️ (3:09:23) FlatMap ⌨️ (3:14:07) Mid Review ⌨️ (3:15:00) Seven Wonders ⌨️ (3:40:27) For Comprehension ⌨️ (3:42:00) Expense Manager ⌨️ (4:04:17) Project Stats ⌨️ (5:16:30) Final Words 🎉 Thanks to our Champion and Sponsor supporters: 👾 davthecoder 👾 jedi-or-sith 👾 南宮千影 👾 Agustín Kussrow 👾 Nattira Maneerat 👾 Heather Wcislo 👾 Serhiy Kalinets 👾 Justin Hual 👾 Otis Morgan -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp

Ready to level up your programming skills? 🚀 Welcome to the Complete Elixir Programming Course, where you'll master one of the most powerful languages for building scalable, concurrent applications.📚 Course Overview:Master Elixir from the ground up with your instructor, Jacob Luetzow, an experienced Elixir developer. This comprehensive course covers everything you need to become proficient in Elixir programming, from basic syntax to advanced concurrency patterns.🎯 What You'll Learn:• Introduction to Elixir & functional programming• Core language fundamentals• Advanced modules & functions• List manipulation & Enum operations• Control flow mastery• Data management with Structs• Concurrent programming & OTP• Introduction to metaprogramming✨ Course Benefits:• Real-world project examples• Structured learning path• Professional mentorship💪 Perfect For:• Beginners starting their programming journey• Experienced developers looking to add Elixir to their toolkit• Teams transitioning to Elixir for scalable solutions🤝 Community & Support:Join our thriving community of Elixir developers! Get help, share insights, and grow together with fellow learners and experienced mentors.🔗 Connect with me• Website: https://elixirmentor.com/• Discord: https://discord.gg/rsTARfP4xx• YouTube: https://youtube.com/@elixirmentor• More links: https://linktr.ee/jacob_luetzowStart your Elixir journey today and join thousands of developers who are building the future with this powerful language! #ElixirProgramming #Programming #WebDevelopment #CodingCourse #SoftwareEngineering #TechEducation

Learn the Go programming language in this full course for beginners. You'll practice writing performant, idiomatic Go with these hands-on lessons and challenges. 💻 Code: https://github.com/bootdotdev/fcc-learn-golang-assets 💻 Follow along interactively on Boot.dev: https://boot.dev/learn/learn-golang ✏️ Course created by @bootdotdev 🐦 Follow Lane on Twitter: https://twitter.com/wagslane 🔗 Learn back-end on Boot.dev: https://boot.dev 🔗 Need help? Join the Boot.dev Discord: https://boot.dev/community Documentation used: 🔗 Chi router: https://github.com/go-chi/chi 🔗 Goose migrations: https://github.com/pressly/goose 🔗 Text instructions for the project: https://boot.dev/build/blog-aggregator ⭐️ Contents ⭐️ (0:00:00) Intro (0:03:17) Ch 1. Why write Go? (0:27:39) Ch 2. Variables (0:51:11) Ch 3. Functions (1:16:58) Ch 4. Structs (1:34:36) Ch 5. Interfaces (2:00:26) Ch 6. Errors (2:22:01) Ch 7. Loops (2:48:21) Ch 8. Slices (3:39:54) Ch 9. Maps (4:06:19) Ch 10. Advanced functions (4:31:03) Ch 11. Pointers (4:48:02) Ch 12. Local development (5:31:43) Ch 13. Channels & concurrency (6:07:38) Ch 14. Mutexes (6:30:56) Ch 15. Generics (6:38:38) Ch 16. Quiz (6:43:13) P1. RSS aggregator project (6:53:43) P2. Chi router (7:11:37) P3. Postgres database (7:39:10) P4. Authentication w/ API keys (8:18:28) P5. Many to many relationships (8:39:13) P6. Aggregation worker (9:05:28) P7. Viewing blog posts 🎉 Thanks to our Champion and Sponsor supporters: 👾 davthecoder 👾 jedi-or-sith 👾 南宮千影 👾 Agustín Kussrow 👾 Nattira Maneerat 👾 Heather Wcislo 👾 Serhiy Kalinets 👾 Justin Hual 👾 Otis Morgan -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news ❤️ Support for this channel comes from our friends at Scrimba – the coding platform that's reinvented interactive learning: https://scrimba.com/freecodecamp

In this full stack development course, you will learn how to create an application using MongoDb for the database, Java and Spring Boot for the backend, and React for the frontend. You will learn to develop a movie review application that will feature a separation of concerns between the client code and the server code. By implementing this loosely coupled architecture, these two parts (implemented using different technologies) can evolve in parallel and independently from one another. ✏️ Farhan Hasin Chowdhury teaches the backend section. ✏️ Gavin Lon teaches the frontend section. @GavinLon 💻 Backend Code: https://github.com/fhsinchy/movieist 💻 Frontend Code: https://github.com/GavinLonDigital/movie-gold-v1 🔗 Spring Initializr - https://start.spring.io/ 🔗 JDK Download Page: https://www.oracle.com/java/technologies/downloads/ 🔗 IntelliJ IDEA Download Page: https://www.jetbrains.com/idea/download/ 🔗 Postman Download Page: https://www.postman.com/downloads/ 🏗 MongoDB provided a grant to make this course possible. ❤️ Try interactive Full Stack courses we love, right in your browser: https://scrimba.com/freeCodeCamp-Fullstack (Made possible by a grant from our friends at Scrimba) ⭐️ Contents ⭐️ ⌨️ (0:00:00) Course Introduction ⌨️ (0:01:48) JDK and IntelliJ IDEA Installation ⌨️ (0:06:13) MongoDB Atlas ⌨️ (0:20:35) Project Initialization ⌨️ (0:27:03) Project Structure ⌨️ (0:29:13) Running The Project ⌨️ (0:32:41) Writing The First Endpoint ⌨️ (0:35:33) Database Configuration ⌨️ (0:38:49) Installing Additional Dependencies ⌨️ (0:44:48) Setting Up Environment Variables ⌨️ (0:47:20) Movies and Reviews Endpoints ⌨️ (1:31:46) Testing ⌨️ (1:35:42) Backend Conclusion ⌨️ (1:36:45) Frontend Introduction ⌨️ (1:38:32) Create the React Project ⌨️ (1:43:49) Applying Bootstrap to our React application ⌨️ (1:52:47) Implementing the Use State and Use Effect Hooks ⌨️ (1:58:04) Create Home and Hero Component ⌨️ (2:06:56) Style the Carousel ⌨️ (2:15:21) Create Header Component (Navigation) ⌨️ (2:21:55) Create Trailer Component with react-player ⌨️ (2:28:46) Create Movie Reviews Functionality ⌨️ (2:34:43) Add and Get Reviews with HTTP Requests ⌨️ (2:40:33) Course Wrap Up 🎉 Thanks to our Champion and Sponsor supporters: 👾 Nattira Maneerat 👾 Heather Wcislo 👾 Serhiy Kalinets 👾 Erdeniz Unvan 👾 Justin Hual 👾 Agustín Kussrow 👾 Otis Morgan -- Learn to code for free and get a developer job: https://www.freecodecamp.org Read hundreds of articles on programming: https://freecodecamp.org/news