Podcast
Questions and Answers
What does the logical OR (||) operator return if x can be converted to true?
What does the logical OR (||) operator return if x can be converted to true?
- x (correct)
- false
- true
- y
How can the return value of the || operator be explicitly converted to a boolean value?
How can the return value of the || operator be explicitly converted to a boolean value?
- Using a double NOT operator or the Boolean() constructor (correct)
- By using the ternary conditional operator
- By using the typeof operator
- Using a double AND operator
What is the meaning of 'or' as used in logic?
What is the meaning of 'or' as used in logic?
- Indicate an alternative (correct)
- Indicate both options are false
- Indicate an exclusive choice
- Indicate both options are true
What language does 'or' originate from?
What language does 'or' originate from?
What is the first known use of 'or'?
What is the first known use of 'or'?
Flashcards
Logical OR (||) operator
Logical OR (||) operator
Returns the first operand that can be converted to true.
How to convert OR result to boolean
How to convert OR result to boolean
Use double NOT operator (!!x) or Boolean() constructor.
Meaning of 'or' in logic
Meaning of 'or' in logic
Indicates an alternative choice between options.
Origin of 'or'
Origin of 'or'
Signup and view all the flashcards
First known use of 'or'
First known use of 'or'
Signup and view all the flashcards
Study Notes
Logical OR Operator
- The logical OR (||) operator returns
trueif at least one operand can be converted to true; otherwise, it returns false. - If
xcan be converted to true, the expressionx || ywill evaluate to true regardless of the value ofy.
Explicit Conversion to Boolean
- The return value of the || operator can be explicitly converted to a boolean value by using functions like Boolean() in JavaScript or by applying double negation (
!!) to the result.
Meaning of 'or' in Logic
- 'Or' in logic signifies a disjunction, indicating that at least one of the statements or propositions involved is true.
Etymology
- The word 'or' originates from Old English “ofer,” which translates to “either” or “alternatively.”
First Known Use
- The first documented use of 'or' dates back to the 14th century.
Studying That Suits You
Use AI to generate personalized quizzes and flashcards to suit your learning preferences.
