Ruby - Variables and Data Types
You need to store a user's email address in a local variable following Ruby naming conventions. Which variable name is best?
You need to store a user's email address in a local variable following Ruby naming conventions. Which variable name is best?
hard📝 Application Q8 of 15
Step-by-Step Solution
Solution:
Step 1: Review Ruby naming conventions
Local variables should start with a lowercase letter or underscore and use snake_case for readability.Step 2: Evaluate options
userEmail uses camelCase, which is not idiomatic Ruby.
User_email starts with uppercase letter, treated as constant.
user_email uses snake_case, recommended style.
user-email contains a hyphen, invalid character.Final Answer:
user_email -> Option CQuick Check:
Snake_case with lowercase start [OK]
Quick Trick: Use snake_case for local variables [OK]
Common Mistakes:
- Using camelCase instead of snake_case
- Starting variable names with uppercase letters
- Including invalid characters like hyphens
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