Swift - Operators and Expressions
Which of the following is the correct syntax to negate a Boolean value
isActive in Swift?Which of the following is the correct syntax to negate a Boolean value isActive in Swift?
easy📝 Syntax Q12 of 15
Step-by-Step Solution
Solution:
Step 1: Recall the NOT operator syntax
In Swift, the NOT operator is written as an exclamation mark (!) placed before the Boolean variable to flip its value.Step 2: Check each option
!isActive is the correct syntax. The other options are not valid Swift syntax for negation.Final Answer:
!isActive -> Option AQuick Check:
NOT = ! before variable [OK]
Quick Trick: Use ! before variable to negate Boolean [OK]
Common Mistakes:
- Writing 'not' instead of '!'
- Putting ! after variable name
- Using method calls like .not()
Master "Operators and Expressions" in Swift
Want More Practice?
15+ quiz questions · All difficulty levels · Free
Free Signup - Practice All QuestionsMore Swift Quizzes