Logical operators are used to determine the logic between variables or values. JavaScript supports several logical operators, including:
&&
(Logical AND)||
(Logical OR)!
(Logical NOT)
How to Use Logical Operators
Here’s a brief explanation of how each operator works:
Logical AND (&&
)
The &&
operator returns true if both operands are true. If one or both operands are false, it returns false.
let x = 5;
console.log(x > 3 && x < 10); // true
Logical OR (||
)
The ||
operator returns true if at least one of the operands is true. If both operands are false, it returns false.
let x = 5;
console.log(x < 3 || x > 10); // false
Logical NOT (!
)
The !
operator returns the opposite of the operand. If the operand is true, it returns false, and vice versa.
let x = 5;
console.log(!(x > 3)); // false
Using JavaScript’s logical operators is fundamental to performing logical operations in your code. They are essential tools in every developer’s toolkit.