Kotlin - Collections Fundamentals
What is the primary role of the
forEach function when applied to a Kotlin collection?What is the primary role of the forEach function when applied to a Kotlin collection?
easy📝 Conceptual Q1 of 15
Step-by-Step Solution
Solution:
Step 1: Understand forEach
TheforEachfunction iterates over each element in a collection.Step 2: Purpose
It executes the given lambda expression on every element, typically for side effects like printing.Final Answer:
To perform a specified action on each element of the collection -> Option DQuick Check:
forEach does not filter, sort, or transform collections [OK]
Quick Trick: forEach runs code on each element without changing collection [OK]
Common Mistakes:
MISTAKES- Confusing forEach with map or filter
- Thinking forEach returns a new collection
- Assuming forEach sorts elements
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