[Solved] Identify the error in this Ruby code:name = "Alice" name.freeze name.upcase! — Ans: Error because upcase! tries to modify a frozen string. | Ruby

Ruby - String Operations

Identify the error in this Ruby code:

name = "Alice"
name.freeze
name.upcase!

AError because <code>upcase!</code> tries to modify a frozen string.

BNo error; the code runs fine.

CError because <code>freeze</code> is called incorrectly.

DError because <code>name</code> is not a string.

Step-by-Step Solution

Solution:

Step 1: Check freeze usage
The freeze method is correctly called on the string name, making it immutable.
Step 2: Understand upcase! effect
The upcase! method tries to change the string in place, which is not allowed on a frozen string, causing a runtime error.
Final Answer:
Error because upcase! tries to modify a frozen string. -> Option A
Quick Check:
Modifying frozen string with upcase! = error B [OK]

Quick Trick: In-place methods fail on frozen strings [OK]

Common Mistakes:

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