[Solved] What will be the output of this Swift code?var greeting = "Hello" greeting = greeting + ", World!" print(greeting) | Swift

Swift - Variables and Constants

What will be the output of this Swift code?

var greeting = "Hello"
greeting = greeting + ", World!"
print(greeting)

AHello

BError: Cannot concatenate strings

CHello, World!

DWorld!

Step-by-Step Solution

Solution:

Step 1: Analyze string concatenation with mutable variable
The variable greeting starts as "Hello" and is updated by adding ", World!".
Step 2: Determine print output
Printing greeting shows the combined string "Hello, World!".
Final Answer:
Hello, World! -> Option C
Quick Check:
Mutable string variables can concatenate and update [OK]

Quick Trick: Strings with var can be changed by adding text [OK]

Common Mistakes:

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