[Solved] What is the difference between a local variable and a constant in Ruby? — Ans: Local variables start with a lowercase letter; constants start with an... | Ruby

Ruby - Variables and Data Types

What is the difference between a local variable and a constant in Ruby?

ALocal variables and constants have no naming differences

BLocal variables start with an uppercase letter; constants start with a lowercase letter

CLocal variables start with a dollar sign; constants start with an underscore

DLocal variables start with a lowercase letter; constants start with an uppercase letter

Step-by-Step Solution

Solution:

Step 1: Recall Ruby naming conventions
Local variables start with lowercase letters or underscores. Constants start with uppercase letters.
Step 2: Match options with rules
Local variables start with a lowercase letter; constants start with an uppercase letter correctly states the difference. Options B, C, and D are incorrect based on Ruby rules.
Final Answer:
Local variables start with a lowercase letter; constants start with an uppercase letter -> Option D
Quick Check:
Variable vs constant naming = lowercase vs uppercase [OK]

Quick Trick: Constants always start uppercase; locals lowercase [OK]

Common Mistakes:

Master "Variables and Data Types" in Ruby

9 interactive learning modes - each teaches the same concept differently

More Ruby Quizzes

What is the difference between a local variable and a constant in Ruby?