Ruby - Operators and Expressions
What is the output of this Ruby code?
puts (true || false) && !false
What is the output of this Ruby code?
medium📝 Predict Output Q13 of 15
Step-by-Step Solution
Solution:
Step 1: Evaluate inside parentheses
true || falseis true because at least one side is true.Step 2: Evaluate the NOT operator
!falseis true because NOT false is true.Step 3: Evaluate the AND operator
Now we havetrue && true, which is true.Final Answer:
true -> Option CQuick Check:
(true || false) && !false = A [OK]
Quick Trick: Evaluate parentheses, then !, then && [OK]
Common Mistakes:
MISTAKES- Evaluating && before ||
- Forgetting to apply ! operator
- Assuming false because of || false
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