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Which of the following is the correct way to write a NOT operation in Ruby?

easy📝 Syntax Q12 of 15
Ruby - Operators and Expressions
Which of the following is the correct way to write a NOT operation in Ruby?
A!x
B~x
Cnot x
Dx != true
Step-by-Step Solution
Solution:

  1. Step 1: Identify Ruby's NOT operator syntax

    Ruby uses ! before a value to reverse its truth value.

  2. Step 2: Check other options

    not x is valid but less common; ~x is bitwise NOT; x != true is a comparison, not logical NOT.

  3. Final Answer:

    !x -> Option A

  4. Quick Check:

    Logical NOT = C [OK]
Quick Trick: Use ! before a value to reverse true/false [OK]
Common Mistakes:
  • Using ~ instead of ! for logical NOT
  • Confusing != with NOT operator
  • Using 'not' keyword instead of !

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