In Swift, if you create a new String by assigning an existing string variable and then change the new string, what will be the value of the original string?

easy📝 Conceptual Q2 of 15

Swift - Data Types

In Swift, if you create a new String by assigning an existing string variable and then change the new string, what will be the value of the original string?

AThe program throws a runtime error

BThe original string changes to match the new string

CBoth strings become empty

DThe original string remains unchanged

Step-by-Step Solution

Solution:

Step 1: Understand value type behavior
Strings in Swift are value types, so assigning one string to another copies the value.
Step 2: Modify the new string
Changing the new string does not affect the original because they are independent copies.
Final Answer:
The original string remains unchanged -> Option D
Quick Check:
Original string unchanged after modifying copy [OK]

Quick Trick: Strings are copied, original stays intact [OK]

Common Mistakes:

Assuming strings are reference types and both change
Believing modifying one string affects the other

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More Swift Quizzes

In Swift, if you create a new String by assigning an existing string variable and then change the new string, what will be the value of the original string?

Step 1: Understand value type behavior

Step 2: Modify the new string

Final Answer:

Quick Check:

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