[Solved] Examine the Swift code below and identify the issue related to string value type behavior:var first = "Code" var second = first second += " Review" print(first) | Swift

Swift - Data Types

Examine the Swift code below and identify the issue related to string value type behavior:

var first = "Code"
var second = first
second += " Review"
print(first)

ANo issue; <code>first</code> remains "Code" after modification of <code>second</code>

BModifying <code>second</code> also changes <code>first</code> due to shared reference

CThe code will cause a compile-time error because strings are immutable

DThe print statement will output "Code Review"

Step-by-Step Solution

Solution:

Step 1: Understand string copying
Assigning first to second copies the string value.
Step 2: Modify second
Appending to second does not affect first because they are separate copies.
Step 3: Output analysis
Printing first outputs "Code" as it was not changed.
Final Answer:
No issue; first remains "Code" after modification of second -> Option A
Quick Check:
Modifying copy does not affect original string [OK]

Quick Trick: Strings copy on assignment; originals stay unchanged [OK]

Common Mistakes:

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