How can you create a new array by doubling each element of an existing IntArray named numbers in Kotlin?

hard📝 Application Q9 of 15

Kotlin - Collections Fundamentals

Aval doubled = numbers.forEach { it * 2 }

Bval doubled = numbers.map { it * 2 }

Cval doubled = numbers.map { it * 2 }.toIntArray()

Dval doubled = numbers * 2

Step-by-Step Solution

Solution:

Step 1: Use map to transform each element
map applies a function to each element and returns a List.
Step 2: Convert List back to IntArray
toIntArray() converts the List to IntArray.
Final Answer:
val doubled = numbers.map { it * 2 }.toIntArray() -> Option C
Quick Check:
Use map + toIntArray() to transform IntArray [OK]

Quick Trick: Use map and toIntArray() to transform IntArray [OK]

Common Mistakes:

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