How Kotlin’s destructuring declarations works

In this blog, we’ll learn how to use Kotlin’s destructuring declarations to make your code more concise and easier to read.

Destructuring declarations allow you to extract multiple variables from an object in a single line of code. It’s a really handy feature, especially when you’re working with data types like the Pair class.

Here’s an example of how it works:

val pair = Pair("apple", "fruit")
val (fruit, type) = pair

In this case, we’ve created a Pair object with two values – “apple” and “fruit”. Then, we use a destructuring declaration to extract those values and assign them to the variables fruit and type.

This is a lot simpler than accessing the values through the `first` and `second` properties of the Pair object. It also makes your code easier to read because the variables are named in a way that makes more sense in the context of your code.

This can be especially useful when working with functions that return a pair, such as `Map.entries.first()`. Also, keep in mind that data classes also have a destructuring declaration support.