Logical operators are typically used to build logical expressions where the result of the expression informs some action or inaction. There are three logical operators in JavaScript:

• The NOT operator (!a)
• The AND operator (a && b)
• The OR operator (a || b)

As with most other operators, they can accept a variety of types and will coerce as necessary. The AND and OR operators, unusually, do not always evaluate to a Boolean value, and both utilize a mechanism called short-circuit evaluation to only execute both operands if some condition is met. We'll learn more about this as we explore each individual logical operator.