Kotin is one of the most popular programming languages in use these days because of its capabilities to build robust mobile apps. The multi-platform capabilities of this programming language make it an outstanding choice for people who wish to hire android app developers. If you talk with experts from any company offering mobile app development services, they all will recommend using Kotlin to develop the mobile applications for your business.
Despite so many benefits of using this programming language, many people often find themselves in daunting situations while deciding the technologies they should employ for app development. Today, we will discuss Kotlin and the implementation of Flow race/amb operator to get unique functionalities for your business apps.
What is Kotlin, and what are its uses?
Kotlin is a programming language that is widely used to build mobile applications. Though it is widely used to develop android applications, it has abilities to build multi-platform apps too. This programming language is a statically typed general-purpose programming language with type inference.
You can hire Android app developer for two different versions of this language. The first one is fully interoperable with Java and the second one i.e. the JVM version depends on the Java class library.
As Google and Jet Brains sponsor this programming language, you should rest assured about its usability for mobile app development services. Below are some of the most significant features of Kotlin that tempt developers all over the world to use this programming language.
- Kotlin involves around 40% less coding in comparison to Java, thus making app development a breeze.
- Due to high interoperability with Java, you will never face problems while using Kotlin in a java project.
- Kotlin has several advanced features like operator overloading and string templates to facilitate the swift development process.
- People coming from a Java background can learn Kotlin much more easily in comparison to other programming languages.
- Kotlin enables you to catch the errors at the time of compiling the apps. As this language include statistical typing, it does type checking at compile time.
What does flow mean in Kotlin?
Kotlin flow refers to an asynchronous stream library introduced by JetBrains. It uses the Kotlin Coroutines to emit values when it finishes the computing. A producer and a consumer are two elements required to create a flow. Producers refer to the elements emitting a value, and consumers refer to the Kotlin element that receives the value. They both are useful to carry out the computation.
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What is a Race condition, and why is it used?
You can refer to the Race condition as a concurrency bug resulting from the accessing of shared data by two or more threads. In addition to the shared access, these threads simultaneously try to change the data too. For example, if you look at how bank transactions work, you find that whenever there is a transaction, two different threads work to credit and debit the account. Making the transaction requires fetching the account balance and updating it simultaneously thus, applying such instruction requires concurrent operation of two or more threads.
How can you implement the Kotlin flow race/amb operator?
Before we start discussing the implementation of the race/amb operator for flow, you should know that this operator has significant similarities to the race of rxjs or amb of RxJava. Most developers use it when they expect multiple flows.
The race/amb operator helps to collect all these flows and cancel all of them except one that emits the values. For it will consider the flow that was first to emit value before any other flow does so. As a result, it will only forward the events from the flow that emits the value, thus canceling all other events.
The Race/amb operator is helpful when there are multiple resources to provide values. In cases where the latency is unpredictable and varying, it helps to fetch the fastest value and ignore slower ones for more efficiency.
How to implement the race/amb operator?
Understanding the working of Race is vital for its implementation. Let’s divide its work into four parts for better clarity.
- Step 1 – It collects all the sources i.e. Flows
- Step-2 – Whenever any new event arrives from Flow, it passes it down to the collector.
- Step-3 – Once it receives the value from any flow, it automatically cancels all other Flows.
- Step-4 – After canceling the other Flows, it forwards the events from the Flow that emitted the value.
To understand the implementation part of race/amb you can go through the below images for better clarity.
We hope that this article will provide you enough insights for implementing the race/amb operator. You should hire android app developers from companies offering mobile app development services. It will help you for flawless implementation of race/amb operator while using Kotlin. Only an experienced developer can help you overcome any challenges while using race/amb for efficiency in your mobile apps.