Logical operators are used to combine conditions and control program flow. They are essential in if statements, authentication checks, and form validation.
Logical Operators List
| Operator | Description |
|---|---|
&& | Logical AND |
|| | Logical OR |
! | Logical NOT |
Logical AND (&&)
Returns true only when all conditions are true.
If any condition is false, result is false.
Logical OR (||)
Returns true if at least one condition is true.
Logical NOT (!)
Inverts the boolean value.
Used frequently in toggle logic:
Short-Circuit Behavior (Important Concept)1 false && console.log("This will NOT run");
JavaScript stops evaluating once the result is known.