[Solved] Identify the error in this Kotlin code:val name: String? = "Kotlin" name.let { println(it.length) } — Ans: Missing safe call operator before let | Kotlin

Kotlin - Null Safety

Identify the error in this Kotlin code:

val name: String? = "Kotlin"
name.let { println(it.length) }

ACannot use let with nullable types

BNo error, code runs fine

CIncorrect lambda syntax

DMissing safe call operator before let

Step-by-Step Solution

Solution:

Step 1: Check safe call usage on nullable variable
name is nullable, but let is called without safe call ?..
Step 2: Understand consequence
Calling let directly on nullable can cause NullPointerException if name is null.
Final Answer:
Missing safe call operator before let -> Option D
Quick Check:
Nullable variable needs ?. before let [OK]

Quick Trick: Always use ?.let on nullable variables to avoid errors [OK]

Common Mistakes:

MISTAKES

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