Kotlin Coroutines Guide – Concurrent Programming in Kotlin

Kotlin Coroutines Guide – Concurrent Programming in Kotlin

Functional Programming, Java, Kotlin
updated 10/29/2018 Introduction and Motivation In this article, you will learn about Kotlin Coroutines: What they are, what they look like, and how they work. The demonstrated code examples were tested with Kotlin 1.3.0 and kotlinx.coroutines 1.0.0. Kotlin coroutines are one of the "bigger features" as indicated by the following quote, taken from JetBrains' blog: We all know that blocking is bad under a high load, that polling is a no-go, and the world is becoming more and more push-based and asynchronous. Many languages (starting with C# in 2012) support asynchronous programming through dedicated language constructs such as async/await keywords. In Kotlin, we generalized this concept so that libraries can define their versions of such constructs, and async is not a keyword, but merely a function. This design allows the…
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Kotlin Function Literals with Receiver – Quick Introduction

Kotlin Function Literals with Receiver – Quick Introduction

Functional Programming, Kotlin, Software Development
Kotlin Function Literals with Receiver - The Foundation for DSLs and many Library Functions Today I want to give a quick introduction to Kotlin Function Literals with Receiver. This concept is what makes Kotlin great for designing Domain Specific Languages as we know it from Groovy for example. Also, Kotlin's standard library includes many functions which many of you have already used or at least seen probably: apply and with are the most prominent ones. (more…)
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Kotlin on the JVM – Bytecode Generation

Kotlin on the JVM – Bytecode Generation

Functional Programming, Kotlin, Software Development
Kotlin on the JVM - How can it provide so many features? Introduction What exactly is a "JVM language", what is Kotlin? Isn’t only Java meant to run on the JVM? Kotlin provides many features that aren’t available in Java such as proper function types, extension functions and data classes. How is this even possible? I’ve taken a deeper look at how Kotlin works under the hood and what "JVM language" actually means. We'll be having a look at Kotlin's bytecode generation. If you also thought about these things already, this article should bring some light into the darkness :) For a more detailed introduction to Kotlin’s features you can have a look at my Getting Started Guide. (more…)
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