Ruby - Operators and Expressions
Which of the following is the correct way to check if a variable
x is truthy in Ruby?Which of the following is the correct way to check if a variable x is truthy in Ruby?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Understand Ruby truthy check
In Ruby,if xautomatically checks ifxis truthy (not false or nil).Step 2: Analyze options
if x == trueonly matches true, missing other truthy values;if x != niltreatsfalseas truthy (false != nil);if x == nilchecks the opposite of truthy.Final Answer:
if x -> Option BQuick Check:
Useif xfor truthy check [OK]
Quick Trick: Use 'if x' to check truthiness simply [OK]
Common Mistakes:
MISTAKES- Using 'if x == true' which misses other truthy values
- Using 'if x != nil' which treats false as truthy
- Checking 'if x == nil' to test truthiness
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