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I also devised documentation for each app, detailing operational aspects, functions, capabilities, and features. So, it explains how the reassignment happens.įurther, let’s look at the implementation of List‘s ‘ +‘ ( plus operation) operator: public operator fun Collection. I implemented features for more than five applications in Java and Kotlin, while working closely with core technology teams and other platform teams to balance cross-platform consistency with Android optimization. Now, let’s take a closer look at this compilation error. First, as the List interface and its super types don’t have the plusAssign() function, here, myList += “Tom Cruise” is the same as myList = myList + “Tom Cruise”. However, the error message is different this time: “ Kotlin: Val cannot be reassigned.” Compare developer experience, speed, performance, and community. Learn shiny new features with the analyzer being updated for each Kotlin. Explore the benefits and drawbacks of Kotlin and React Native for Android app development. Next, let’s test the += operator: val myList = listOf("Tom Hanks", "Brad Pitt")Īs we’ve expected, the code doesn’t compile either. Sonar static analysis helps you build and maintain high-quality Kotlin code. We look at some of the options and which is more efficient at. If we compile the code above, the compiler complains: “Kotlin: Unresolved reference: add.” This is expected, as the List interface doesn’t have the add() method. There are a few ways to iterate over the keys and values in a Kotlin map. But let’s create a test to verify if it’s true: var myList = listOf("Tom Hanks", "Brad Pitt")

I am very interested in studies in the field of management as well as Cloud (AWS) and coding (Java, Kotlin, C). Since List is read-only, we can’t add an element to it. Hi, Im Lucky Wiratanandi, being a college student in Brawijaya University taking Hotel, Motel, and Restaurant Management. Finally, let’s look at the List type in Kotlin.