JavaScript Logical OR Operator Quiz

Which operator in JavaScript returns the value of the first operand if it can be converted to true, otherwise it returns the value of the second operand?

What is the term used to describe a value that can be converted to true in JavaScript?

What is the term used to describe a value that can be converted to false in JavaScript?

What can be used to explicitly convert the return value of the logical OR operator in JavaScript to a boolean value?

In logic, what does the word 'or' indicate when used as a sentential connective?

JavaScript Logical Operators

The logical OR operator (||) returns the value of the first operand if it is truthy; otherwise, it returns the second operand.
A truthy value in JavaScript is any value that can be converted to true in a boolean context.

Truthy and Falsy Values

Truthy values include all values except for specific falsy ones: false, 0, "" (empty string), null, undefined, and NaN.
Falsy values are those that convert to false in a boolean context.

Explicit Conversion to Boolean

The function Boolean() can be used to explicitly convert any value, including the result of the logical OR operator, to a boolean value.
This ensures a clear truthy or falsy result regardless of the original type of the operand.

Logic and Sentential Connectives

In logic, the term 'or' indicates a disjunction, meaning that at least one of the operands must be true for the overall statement to be true.
There are inclusive or (at least one must be true) and exclusive or (only one must be true) interpretations of 'or'.

Test your knowledge of the logical OR operator (||) in JavaScript with this quiz. Learn about truthy and falsy values and how the OR operator works in different scenarios.