[Solved] Find the error in this Ruby code snippet:sym = :hello sym — Ans: Symbols cannot be concatenated with << | Ruby

Ruby - Variables and Data Types

Find the error in this Ruby code snippet:

sym = :hello
sym << " world"
puts sym

ASymbols can be changed with << operator

BSymbols cannot be concatenated with <<

CSyntax error in symbol declaration

DMissing quotes around symbol

Step-by-Step Solution

Solution:

Step 1: Check symbol mutability
Symbols are immutable, so you cannot change them or add to them with operators like <<.
Step 2: Identify the error in code
The line sym << " world" tries to modify the symbol, which causes a runtime error.
Final Answer:
Symbols cannot be concatenated with << -> Option B
Quick Check:
Symbols are immutable, no << allowed [OK]

Quick Trick: Symbols cannot be changed or concatenated [OK]

Common Mistakes:

Master "Variables and Data Types" in Ruby

9 interactive learning modes - each teaches the same concept differently

More Ruby Quizzes

Find the error in this Ruby code snippet: