Functional Kotlin

The map function

The map function allows you to apply an algorithm to a collection all-together and obtain the results as a resultant set. It's helpful in making your code well-organized and writing loops (though it'll use loop internally, you're freed from writing those boilerplate codes).

The map function receives all the elements of the collection as each iteration and should return the computed resultant item that should be placed in the resultant list in place of the passed item.

Go through the following example:

fun main(args: Array<String>) { 
    val list = listOf<Int>(1,2,3,4,5,6,7,8,9,10) 
    val modifiedList = list.map { it*2 } 
 
    println("modifiedList -> $modifiedList") 
} 

So, we had a list of Int, we needed to multiply each item from the ...