[Solved] Find the mistake in this Swift code snippet:var s1 = "Hello" var s2 = &s1 s2 += " World" print(s1) — Ans: Using & to assign a string reference is invalid | Swift

Swift - Data Types

Find the mistake in this Swift code snippet:

var s1 = "Hello"
var s2 = &s1
s2 += " World"
print(s1)

AAppending to s2 is not allowed

BUsing & to assign a string reference is invalid

Cs1 is not declared

Dprint statement syntax is wrong

Step-by-Step Solution

Solution:

Step 1: Understand & usage in Swift
& is used for inout parameters, not for assigning references to variables.
Step 2: Analyze assignment
Assigning &s1 to s2 is invalid syntax for strings in Swift.
Final Answer:
Using & to assign a string reference is invalid -> Option B
Quick Check:
No pointer references for strings in Swift [OK]

Quick Trick: No pointer references for strings in Swift [OK]

Common Mistakes:

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