JavaScript logical operators are used to perform logical operations on the operands.
JavaScript Logical Operators List:
Operator | Description | Example |
&& | Logical AND | (20==40 && 20==30) = false |
|| | Logical OR | (20==40 || 20==30) = false |
! | Logical Not | !(20==30) = true |
JavaScript Logical Operators Example:
<html> <head> <script type="text/javascript"> var a = true; var b = false; var linebreak = "<br />"; document.write("(a && b) => "); result = (a && b); document.write(result); document.write(linebreak); document.write("(a || b) => "); result = (a || b); document.write(result); document.write(linebreak); document.write("!(a && b) => "); result = (!(a && b)); document.write(result); document.write(linebreak); </script> </head> <body> </body> </html>