Why is it that pure functions can’t use mutable states in most cases, and how do you fight mutability by working with immutable values? Check it out in this live coding session by Michal Plachta, the author of Grokking Functional Programming. Watch the full video at: http://mng.bz/J24a 📚📚📚
Grokking Functional Programming | http://mng.bz/wpoO To save 40% off this book use discount code: watchplachta40
📚📚📚 About the book:
Grokking Functional Programming" is a practical book written especially for object-oriented programmers. It will help you map familiar ideas like objects and composition to FP concepts such as programming with immutable data and higher-order functions. You will learn how to write concurrent programs, how to handle errors, and how to design your solutions with modularity and readability in mind. In the end, you'll be ready to pick a functional language and start writing useful and maintainable software. https://www.youtube.com/watch?v=UMcmJe1h6d4

Some very important messages in this talk relating to how organizations can greatly reduce their impact on the environment and lower their energy consumption and/or cloud costs. A must watch! PUBLICATION PERMISSIONS:
Graham Zabel provided Coding Tech with the permission to publish this video. https://www.youtube.com/watch?v=gGLQe_TA38g

CI/CD brings tremendous value to development teams. The rapid availability of feedback helps developers make informed decisions about their design choices and lets teams deploy with confidence. But when systems become large and test times go from seconds to hours, how do we get our groove back? In this talk, we’ll explore strategies for validating large, complex systems, such as:
– Setting well-defined component boundaries
– Flexibly modeling dependencies between these components
– Ranking tests by cost versus value
– Testing in production with canary launches and feature flags These and similar techniques let us minimize test times, maximize confidence, and free our teams up to focus on delivering value to customers. PUBLICATION PERMISSIONS:
Original video was published with the Creative Commons Attribution license (reuse allowed). Link: https://www.youtube.com/watch?v=TJcTIhEH_8w https://www.youtube.com/watch?v=JWrSwXMho5k