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Description
Functional Kotlin (Kotlin for Developers)Kotlin is a powerful language that has already revolutionized Android and backend development, but it also has powerful support for functional programming. Its amazing features, like functional collection processing, DSL builders, scope functions, or context receivers, help developers achieve intuitive and expressive functional syntax. Additionally, Kotlins extensibility allows libraries like Arrow to promote an even more functional style, all while
Kotlin is a powerful language that has already revolutionized Android and backend development, but it also has powerful support for functional programming. Its amazing features, like functional collection processing, DSL builders, scope functions, or context receivers, help developers achieve intuitive and expressive functional syntax. Additionally, Kotlins extensibility allows libraries like Arrow to promote an even more functional style, all while keeping proper type safety, stability, and performance. Thanks to all this, Kotlin has become the promised land for many developers who are passionate about functional programming in real-life applications.About the bookThis book is about Kotlins functional programming features. It covers the essentials first and then builds on them. It presents important and practical topics like collection processing, function references, scope functions, DSL usage and creation, and context receivers.Who this book is forThis book is perfect for developers who know the basics of Kotlin and want to learn more advanced features. Math knowledge is NOT required to understand and benefit from this book. It is a natural continuation of "Kotlin for Developers: Essentials.What is coveredThis book focuses on Kotlins functional features, including: "function types, "anonymous functions, "lambda expressions, "function references, "functional interfaces, "collection processing functions, "sequences, "DSL usage and creation, "scope functions, "the essentials of the Arrow library.Shipping Notes
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Product Reviews
★★★★★ 5
Cute, comfy, practical
Size: 7.5-8 Women/6.5-7 Men, Color: Black
These have become MY FAVORITR SLIPPERS! They are so cute and comfortable! I do like that they have a rubber bottom they're a bit sturdier than other slippers. They last me quite a while to ive only had to replace them once cause I wore them out!
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Reviewed in the United States on January 5, 2026
★★★★★ 5
Super cute and cuper comfortable~
These slippers came very quick with the shipping, and I'm just so happy that they fit amazing. They do have a little lip where the heel is for a little added supports I believe to keep your foot from sliding out as easy. Will they slip out with enough movement? Yeah, but if you're just walking around, it's enough. Typically I tend to go with black colors, but went with the brown this time for a change up. They are so adorable~ They do have memory foam in them, and are very comfortable to wear around the apartment. They do have a hard sole, which is on the thicker side compared to how some slippers have a thin grip on the bottom to be the sole, and is good if you have to wear them outside briefly. The size fits wonderful, not to loose or tight, granted with time and use, they might get a bit loose, but right out of the packaging, and only wearing for a small time around the apartment, they are a glass slipper fit. I stayed to what I normally wear for shoe size, and the size is just right.
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Reviewed in the United States on August 20, 2022
★★★★★ 5
House shoes
Size: 7.5-8 Women/6.5-7 Men, Color: Dark Blue
These are really nice and comfortable. Love the design and color. The memory foam makes these feel so soft and comfy. A
very good value, worth it. Its also the right size and the quality seems good.
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Reviewed in the United States on March 9, 2025
★★★★★ 4
Cute and comfortable
Love these
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Reviewed in the United States on January 27, 2025
★★★★★ 5
Comfort in fit
Size: 6-7 Women/5-5.5 Men, Color: Pink Cat
Soft adorable
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Reviewed in the United States on April 4, 2026