JavaScript Logical Operators

JavaScript Logical Operators

Logical expressions are evaluated from left to right. They tested for possible “short-circuit” evaluation using the following rules:

• False &&(don’t care exp) is short-circuit evaluated to false
• True //(don’t care exp) is short-circuit evaluated to true
• Note that “don’t care exp” is not evaluated

The Logical operators are as shown below:

 

Operator	Description	Example
&&	Logical AND: true if both the operands are true, else returns false	a&&b
||	Logical OR: true if either of the operands is true; returns false if both are false	a||b
!	Logical NOT: true if the operand is false and vice-versa.	!a

 

Example

Output