kotlin array map

To use the map function in Kotlin, you first need to have an array. The map function allows you to transform each element of the array according to a given transformation function. Here are the steps involved in using the map function in Kotlin:

1. Start by defining an array. For example, you can create an array of numbers like this:

kotlin val numbers = arrayOf(1, 2, 3, 4, 5)

1. Next, define a transformation function that will be applied to each element of the array. The transformation function takes an input element and returns a transformed output element. For example, you can define a transformation function that doubles each number in the array like this:

kotlin val doubleNumbers = numbers.map { it * 2 }

In this example, the transformation function it * 2 multiplies each element of the numbers array by 2.

1. The map function applies the transformation function to each element of the array and returns a new array with the transformed elements. In the example above, the map function will return a new array doubleNumbers with the elements [2, 4, 6, 8, 10].

That's it! You have successfully used the map function in Kotlin to transform each element of an array according to a given transformation function.