How can you use Kotlin's first-class functions to create a reusable filter function that takes a list and a condition function, returning only elements that satisfy the condition?

hard📝 Application Q8 of 15

Kotlin - Functions

ADefine a function that accepts a List and a predicate function, then returns a filtered list using the predicate

BCreate a class with a method that filters the list internally without parameters

CUse a global variable to store the condition and filter the list manually

DWrite a function that only accepts lists of integers and filters by fixed condition

Step-by-Step Solution

Solution:

Step 1: Understand first-class functions usage
Passing a condition function as a parameter allows flexible filtering.
Step 2: Define a function accepting a list and a predicate function
The function applies the predicate to filter elements and returns the filtered list.
Final Answer:
Define a function that accepts a List and a predicate function, then returns a filtered list using the predicate -> Option A
Quick Check:
Reusable filter = function + predicate parameter [OK]

Quick Trick: Pass condition functions to customize behavior [OK]

Common Mistakes:

MISTAKES

Hardcoding filter conditions inside function
Not passing condition as a function parameter
Using global variables for conditions

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More Kotlin Quizzes

How can you use Kotlin's first-class functions to create a reusable filter function that takes a list and a condition function, returning only elements that satisfy the condition?

Step 1: Understand first-class functions usage

Step 2: Define a function accepting a list and a predicate function

Final Answer:

Quick Check:

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