Challenge: Lambda Expression

Test your understanding by solving the exercise given in this lesson.

Problem statement

Given a list of integers, count the number of occurrences of even numbers in the list. To do this, you are required to perform the following tasks:

  • Define a function, countOfEven, to calculate the number of even integers in the input list, listOfIntegers, of the List<Int> type, passed to the function.
  • One of the ways to loop over a list in Kotlin, is to invoke the higher order function forEach on that list. Pass a lambda expression to forEach.

Sample test case

var listOfIntegers = listOf(1, 4, 6, 3, 9, 7, 0) 

Expected output


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